Patent Publication Number: US-7215603-B2

Title: Clocking apparatus

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a timing device, and to a timing device with a chronograph, for example. 
     2. Background Information 
     In conventional practice, multifunction timepieces (timing devices) with a chronograph function are designed so that a stop operation or reset operation for the next measurement is prompted and the timing for the next measurement is prevented from being missed by informing the user in a readily recognizable format that an automatic stop has occurred when time measurement automatically stops after the maximum measurable time passes since the initiation of time measurement (for example, JP Kokai No. H11-304966). 
     This multifunction timepiece includes an hour hand, a minute hand, and a second hand for displaying regular time, and also includes a 1/10 second chronograph hand (“chronograph” will hereinafter sometimes be referred to as “CG;” where “CG” is an abbreviation for “chronograph”), a second chronograph hand, a minute chronograph hand, and an hour chronograph hand. The display section of these chronograph hands has circular indicators and is designed so that the maximum measurable time is measured via the chronograph hands making a full rotation from the zero position. 
     Since the chronograph hands automatically stop at the zero position after the maximum measurable time has passed, it is impossible to determine by looking whether they are in the automatically stopped state or whether they are in the return-to-zero condition after resetting, so the multifunction timepiece is designed so that during automatic stopping the chronograph hands are stopped at a position slightly after the zero position, and the user can determine that the chronograph is in the automatically stopped state and not in the return-to-zero condition by ascertaining that the chronograph hands have stopped in such a position. 
     However, when the chronograph hands are stopped at a position slightly past the zero position as with the multifunction timepiece, it is sometimes impossible to immediately determine whether this stopped state is due to automatic stopping or whether the user has used a stop operation. For example, sometimes a user who thinks he has used the stop operation may leave the timepiece unattended without knowing that measurement is actually continuing and will later check the timepiece, but the chronograph hands have stopped in the automatic stopping position. 
     It will be clear to those skilled in the art from the disclosure of the present invention that an improved timing device is necessary because of the above-mentioned considerations. The present invention meets the requirements of these conventional technologies as well as other requirements, which will be apparent to those skilled in the art from the disclosure hereinbelow. 
     SUMMARY OF THE INVENTION 
     An object of the present invention is to provide a timing device wherein it is possible to more reliably determine whether the pointers have stopped at the return-to-zero condition, stopped automatically, or stopped as a result of a stop operation. 
     The timing device of the present invention includes a time display section and a drive unit. The time display section has a dial with measurement indicators from a zero time position to a maximum measurable time position, and pointers capable of rotating above the dial in a fan-shaped trajectory. The drive unit drives the pointers above the dial from the zero time position to the maximum measurable time position, and stops the pointers after the maximum measurable time has passed. 
     The drive unit may also be configured to stop the pointers at a position past the maximum measurable time position above the measurement indicators after the maximum measurable time has passed. 
     The dial may further have an extra display section for indicating that the maximum measurable time has been exceeded. In this case, the drive unit stops the pointers above the extra display section after the maximum measurable time has passed. 
     The timing device may additionally be configured so that the time display section also has a second pointer, and the drive unit drives the pointer according to minute information and drives the second pointer according to second information. 
     The drive unit may also include a return-to-zero mechanism for mechanically returning the pointers to the zero time position. 
     The drive unit may further contain a motor pulse generating circuit and a motor driven by a motor pulse from the motor pulse generating circuit. 
     The objectives, characteristics, merits, and other attributes of the present invention described above shall be clear to those skilled in the art from the description of the invention hereinbelow. The description of the invention and the accompanying diagrams disclose the preferred embodiments of the present invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Referring to the accompanying diagrams that partially disclose the present invention: 
         FIG. 1  is an external front view of a chronograph timepiece, which is the first embodiment of the present invention; 
         FIG. 2  is a cross-sectional view along the line A—A in  FIG. 1 ; 
         FIG. 3  is a cross-sectional view along the line B—B in  FIG. 1 ; 
         FIG. 4  is a cross-sectional view along the line C—C in  FIG. 1 ; 
         FIG. 5  is a cross-sectional view along the line D—D in  FIG. 1 ; 
         FIG. 6  is an enlarged external front view of the chronograph timepiece; 
         FIG. 7  is a perspective view showing a state during the step of assembling the movement; 
         FIG. 8  is a perspective view showing a state during the step of assembling the movement; 
         FIG. 9  is a perspective view showing a state during the step of assembling the movement; 
         FIG. 10  is a perspective view showing a state during the step of assembling the movement; 
         FIG. 11  is a perspective view showing a state during the step of assembling the movement; 
         FIG. 12  is a perspective view showing a state during the step of assembling the movement; 
         FIG. 13  is a perspective view showing a state during the step of assembling the movement; 
         FIG. 14  is a perspective view showing a state during the step of assembling the movement; 
         FIG. 15  is a block diagram showing a chronograph control circuit; 
         FIG. 16  is a block diagram showing a chronograph control circuit and the peripheral circuitry; and 
         FIG. 17  is a flow chart showing the automatic stopping process of the chronograph. 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Embodiments of the invention will now be described with reference to the drawings. As will be apparent from the disclosure of the present invention to those skilled in the art, the description of the invention embodiments is intended solely to illustrate the present invention and should not be construed as limiting the scope of the present invention, which is defined by the claims described below or by equivalent claims thereof. 
       FIG. 1  shows an external front view of a chronograph timepiece  1 , which is an embodiment of the multifunction timepiece of the present invention. 
     This chronograph timepiece  1  includes a time display section  4  consisting of a dial  3  visible through transparent glass  2 , as shown in  FIGS. 2 through 4 , which are cross-sectional views along the cross-sectional lines A—A through D—D in  FIG. 1 . Specifically, the time display section  4  is partitioned off around the inside of the inner peripheral surface (parting surface)  5 A of a glass-holding ring  5  mounted around the dial  3 . Therefore, in the present embodiment, the time display section  4  is partitioned off into a roughly circular shape when viewed from the front, and the parting section for partitioning off the time display section  4  is formed by the glass-holding ring  5 . 
     [1. Pointer Layout Configuration] 
     The chronograph timepiece  1  has an hour hand  11 , a minute hand  12 , and a second hand  13  designed for displaying the standard time and mounted on the time display section (time display device)  4 , and a second chronograph hand (second CG hand)  14  and a minute chronograph hand (second pointer)  15  for displaying information other than the standard time, namely, the chronograph time, as shown in  FIG. 1 . 
     Also, a crown  17 , which is an external operating member for correcting the standard time, is mounted on the side of the timepiece  1  in the 3:00 direction; a start and stop button  18  for starting and stopping the second CG hand  14  and minute CG hand  15  is mounted in the 2:00 direction; and a reset button  19  for returning the second CG hand  14  and minute CG hand  15  to zero is mounted in the 4:00 direction. 
     The shafts  12 A of the hour hand  11  and minute hand  12  are coaxial, and this shaft  12 A is provided to a position (the lower middle of  FIG. 6 ) that is offset from the center  4 A of the time display section  4  in the 6:00 direction, as shown in  FIG. 6 . The second hand  13  is mounted at a position wherein the shaft  13 A thereof is offset from the center  4 A roughly in the 10:00 direction. 
     The second CG hand  14  for displaying the second chronograph time is mounted at a position wherein the shaft  14 A thereof is slightly misaligned (eccentric) from the center  4 A in the 12:00 direction. The eccentricity d 1  is about 1.5 mm in the present embodiment, but this eccentricity d 1  may be set according to the size, design, and the like of the timepiece  1 , and is not limited to 1.5 mm alone. 
     Also, the minute CG hand  15  for displaying the minute chronograph time is mounted at a position wherein the shaft  15 A thereof is offset from the center  4 A roughly in the 2:00 direction. 
     The pointers  11  through  14  are rotated around the timepiece similar to a regular timepiece, but only the minute CG hand  15  moves in a fan pattern above the fan-shaped indicator. In other words, the minute CG hand  15  rotates around the timepiece from the return-to-zero condition (reset state) shown in  FIG. 6 . The measurement indicators have graduations from the zero time position to the maximum measurable time position. 
     Also, when the reset button  19  is pressed, the minute CG hand  15  is designed to rotate in the opposite direction and to return to the initial position (reset state). In the present embodiment, the minute chronograph is a 45-minute timer, and can be used to keep time for soccer, rugby, and other such games. 
     If the lengths from the shafts  12 A through  15 A of the minute hand  12 , the second hand  13 , the second CG hand  14 , and the minute CG hand  15  to the tips of the pointers  12  through  15  are respectively denoted by L 1  through L 4 , then the length L 3  of the second CG hand  14  is made greater than the lengths L 1 , L 2 , and L 4  of the other pointers. Specifically, in the present embodiment, the length A from the shaft  14 A of the second CG hand  14  pointer to the tip of the second CG hand  14  is L 3 , the length B from the shaft  12 A of the minute hand  12  to the tip of the minute hand  12  is L 1 , the length C from the shaft  13 A of the second hand  13  to the tip of the second hand  13  is L 2 , and the length D from the shaft  15 A of the second pointer, the minute CG hand  15 , to the tip of the minute CG hand  15  is L 4 . 
     The interval (distance) between the shaft  12 A of the minute hand  12  and the shaft  14 A of the second CG hand  14  is greater than the length L 1  of the minute hand  12 , and is designed so that the minute hand  12  does not run into the shaft  14 A. It is apparent that the hour hand  11  is shorter than the minute hand  12  and is disposed coaxially with the minute hand  12  to prevent the hour hand  11  from running into the shaft  14 A. 
     In addition to the above-mentioned conditions, the length L 1  of the minute hand  12  and the position of the shaft  12 A are designed so that the tip of the minute hand  12  does not come into contact with the glass-holding ring  5 , which is the parting section, when the minute hand  12  rotates around the shaft  12 A. Specifically, the shaft  12 A is disposed at a position substantially halfway between the inner surface  5 A of the glass-holding ring  5  in the 6:00 direction and the shaft  14 A, and the length L 1  of the minute hand  12  is set according to the position thereof. 
     The interval (distance) between the shaft  13 A of the second hand  13  and the shaft  14 A is also greater than the length L 2  of the second hand  13 , and is designed so that the second hand  13  does not run into the shaft  14 A. 
     The second hand  13  is mounted in the time display section  4  roughly in the 10:00 direction, and since the space in which it can be mounted is smaller than the space in the 6:00 direction in which the hour and minute hands  11  and  12  are mounted, the length L 2  of the second hand  13  is less than the length L 1  of the minute hand  12 . The length L 2  of the second hand  13  and the position in which the shaft  13 A is located are set so as to prevent the second hand from running into the shaft  14 A and the glass-holding ring  5  on the outer periphery of the time display section  4 , similar to the minute hand  12 . 
     On the other hand, the interval between the shaft  15 A of the minute CG hand  15  and the shaft  14 A is smaller than the length L 4  of the minute CG hand  15 , and the shafts  14 A and  15 A are disposed adjacent to each other. 
     Therefore, the minute CG hand  15  may collide with the shaft  14 A when the hand  15  makes a full circle. In the present embodiment, therefore, the configuration is so that the minute CG hand  15  does not make a full circle as do the other pointers  11  through  14  as previously described, and is capable of being turned and driven only within a specific angle range, or, in other words, the drive trajectory thereof is fan shaped. 
     Here, the shafts  12 A,  13 A, and  15 A of the hour hand  11 , minute hand  12 , second hand  13 , and minute CG hand  15  are disposed within the movement trajectory of the second CG hand  14 . Therefore, the vertical position (level) of the second CG hand  14  is disposed higher (next to the glass  2 ) than the vertical position of the hands  11  through  13  and  15 , and the vertical level is set so that the second CG hand  14  does not interfere with the hands  11  through  13  and  15 . 
     The dial  3  on which the indicators  3 A through  3 D are formed is also disposed in alignment with the vertical positions of the hands  11  through  15  because the vertical positions of the hands  11  through  13  and  15  differ from that of the second CG hand  14 . 
     Specifically, the dial  3  is configured from two vertically overlapping dials  31  and  32 , as shown in  FIGS. 2 through 4 . The indicator  3 C for the second CG hand  14  is formed on the upper dial  31  (next to the glass  2 ). In the dial  31 , holes are machined at the points where the hands  11  through  13  and  15  are mounted so that the lower dial  32  is exposed. Therefore, the indicators  3 A,  3 B, and  3 D are formed on the dial  32 . 
     Also, a through-window  16  for exposing the date wheel and displaying the date is formed in the dials  31  and  32  in the section roughly halfway between the 4:00 and 5:00 direction of the dial  3  (roughly the 4:30 direction). 
     Indicators for indicating the standard time and indicators for indicating the chronograph time are formed on the dial  3  in correspondence with the pointers  11  through  15 . Specifically, the indicator  3 A for indicating the hours and minutes of standard time is formed in a circle at a position in the 6:00 direction. The indicator  3 B for indicating the second of standard time is also formed in a circle at a position substantially in the 10:00 direction. The indicator  3 C for indicating the second chronograph time is formed in a circle slightly smaller than the outer periphery of the dial  7 , with the center thereof slightly offset (eccentric) from the 12:00 side. 
     The indicator  3 D for indicating the minute chronograph time is painted in black, for example, along an arcuate portion in a fan pattern. The indicator  3 D is formed in units for indicating the minutes, and contains the largest units among those that indicate chronograph time in the present embodiment. Also, the angle of the center section of the fan pattern is 135 degrees in the present embodiment, and therefore in the present embodiment, which relates to a 45-minute timer, the reduction rate from second to minutes is set at 1/120, and the indicator  3 D is formed in 3-degree increments. 
     In the indicator  3 D, an indicator  3 Da is formed at a location indicating the maximum measurable time, and an extra display section  3 E extending along the arcuate portion is provided in red, for example, to the outer side of the indicator  3 Da. The length of the extra display section  3 E along the arcuate portion corresponds to a length of three minutes in the present embodiment, which is equivalent to a length spanning about 9 degrees in the arc of the fan pattern, and having a considerable indicator width of three minutes allows for a width sufficiently larger than the thickness of the minute CG hand  15  and improves visibility so that the extra display section  3 E is not obscured by the minute CG hand  15 . Also, the indicator width of the extra display section  3 E is greater than the degree of wobbling of the minute CG hand  15  in the direction of rotation resulting from backlash, shaft chatter, or other defects in the chronograph train wheel, to be hereinafter described. 
     In the chronograph timepiece  1 , when the maximum measurable time of 45 minutes passes after initiating chronograph time measurement, the second CG hand  14  automatically stops above the indicator  3 Ca in the 0 second position of the circular indicator  3 C, but the minute CG hand  15  automatically stops at a position beyond the indicator  3 Da for indicating the maximum measurable time, or, specifically, past the end of the extra display section  3 E (tip in the direction of rotation) as shown in  FIG. 6 , and not above the indicator  3 Da. 
     However, the second CG hand  14  and the minute CG hand  15  have the same stop timing, and while the minute CG hand  15  passes the indicator  3 Da and moves a distance of three minutes, for example, the second CG hand  14  also moves a distance of three minutes and the hands  14  and  15  then stop simultaneously. Also, the arbitrarily set length and other properties of the extra display section  3 E should be taken into consideration when determining at what position above the extra display section  3 E the minute CG hand  15  will stop, and the center position or other position of the extra display section  3 E may be selected. Furthermore, the indicator width of the extra display section  3 E is not limited to a distance of three minutes and can be arbitrarily set with consideration to the thickness of the minute CG hand  15  and the entire design above the dial  7 . 
     The chronograph timepiece  1  includes a case  20 , a glass-holding ring  5  fitted via packing in the top opening of the case  20 , glass  2  held by the glass-holding ring  5 , and a back cover  30  fitted via packing in the bottom opening of the case  20 , as shown in  FIGS. 2 through 4 . In the present embodiment, the vertical positional relationship of the timepiece  1  in the cross-sectional direction is so that the glass  2  is on the top, and the back cover  30  is on the bottom, unless particularly specified. 
     A movement  100  for driving the hands  11  through  15  is mounted in the internal space surrounded by the case  20 , the glass  2 , and the back cover  30 . 
     [2. Movement Structure] 
     Next, the configuration of the movement  100  of the chronograph timepiece  1  will be described. In broad terms, the movement  100  of the present embodiment has a two-layer structure. A basic timepiece train wheel for displaying the standard time, a CG (chronograph) train wheel for displaying the chronograph time, and a time correction mechanism for correcting the standard time are mounted in the first layer. 
     Also, a coil block for power generation, a stator, a power-generating train wheel, a secondary battery for charging electric energy, and a chronograph resetting mechanism (resetting device) are mounted in the second layer. 
     A printed circuit board  501  for electrically controlling the standard time display and chronograph display and for controlling the power generator is mounted between the first layer and the second layer. 
     In the present embodiment, the first layer is the upper side of the timepiece  1 , or, in other words, the side near the glass  2 , and the second layer is the lower side of the timepiece  1 , or, in other words, the side near the back cover  30 . 
     [2-1. Configuration of First Layer of Movement] 
     A basic timepiece train wheel or chronograph train wheel, and a time correction mechanism are mounted in the first layer of the movement  100 , as shown also in  FIG. 7 . The perspective view in  FIG. 7  shows the back cover  30  as the top and the glass  2  as the bottom. This is because normally the components are assembled on a main plate  400  when the movement  100  is being assembled. This vertical positional relationship is also the same in the perspective views in  FIGS. 8 through 14 , which show the process of assembling the movement  100 . 
     A synthetic resin circuit cover  700  is mounted on the top surface (next to the back cover) of the main plate  400 , and toothed wheels or the like for each train wheel are mounted on this circuit cover  700  as shown in  FIG. 7 . 
     [2-1-1. Basic Timepiece Train Wheel] 
     A rough structure of the basic timepiece train wheel for showing the standard time will now be described. The basic timepiece is configured with a basic timepiece electric motor  101  and a basic timepiece train wheel. 
     The basic timepiece electric motor  101 , which is a drive source for the basic timepiece, is configured from a basic timepiece coil  102 , a basic timepiece stator  103 , and a basic timepiece rotor  104 . The basic timepiece rotor  104  is rotated at a timing of one step per second by a drive signal from the electric circuit, and the drive is reduced and transmitted to a small second wheel and pinion  106  via a fifth wheel and pinion  105 . Therefore, the second of the standard time are displayed by means of a basic timepiece second hand (small second hand)  13  supported on the small center wheel and pinion  106 . 
     Specifically, the basic timepiece electric motor  101  is mounted near the small center wheel and pinion  106  for supporting the small second hand  13 . Display irregularities during movement of the small second hand  13  can thereby be suppressed. 
     Also, the rotation of the rotor  104  is reduced and transmitted to a center wheel and pinion  111  via the fifth wheel and pinion  105 , a fourth third intermediate wheel  107 , a fourth second intermediate wheel  108 , a fourth first intermediate wheel  109 , and a third wheel and pinion  110 . Therefore, the minutes of the standard time are displayed by the minute hand  12  of the basic timepiece supported on the center wheel and pinion  111 . The drive is transmitted from the center wheel and pinion  111  to an hour-wheel  113  via the date rear wheel to display the hour of the standard time. 
     Here, the distance becomes extremely large between the second hand  13  disposed away from the center  4 A of the time display section  4  roughly in the 10:00 direction, and the hour hand  11  and minute hand  12  disposed in the 6:00 direction. Therefore, in the present embodiment, three intermediate wheels  107  through  109  that do not increase or reduce speed are disposed to transmit the rotation of the basic timepiece electric motor  101  to the center wheel and pinion  111 , which is located at a distance from the rotor  104 . The intermediate wheels  107  through  109  are toothed wheels that do not increase or reduce speed, and are therefore configured from similar toothed wheels. Thus, the cost does not greatly increase even if the number of toothed wheels increases. 
     The basic timepiece train wheel is thus configured from the toothed wheels  105  through  111 . 
     [2-1-2. Time Correction Mechanism] 
     The time correction mechanism for correcting the time of the hour hand  11  and minute hand  12  has a setting stem  130  on which a crown  17  is fixed, and a switching section configured from a setting lever  131 , a bolt  132 , a train wheel setting lever  139 , a clutch wheel  133 , and the like for setting the setting stem  130  to the following set positions: a normal state position, a time correction position, and a calendar correction position. The setting stem  130  is disposed in the 3:00 direction of the timepiece  1 , and the switching section is disposed from the 3:00 direction to the 5:00 direction. 
     Since the setting stem  130  disposed in the 3:00 direction and the hour hand  11  and minute hand  12  disposed in the 6:00 direction are separated, the time correction mechanism of the present embodiment has three intermediate wheels  135  through  137 . 
     Specifically, the setting lever  131  is coupled with the bolt  132 , and the clutch wheel  133  interlocks with a setting-wheel  134  by pulling out the setting stem  130  fixed to the crown  17 . The setting-wheel  134  transmits the rotation of the setting stem  130  to a minute wheel  138  sequentially via the third intermediate minute wheel  135 , the date rear second intermediate wheel  136 , and the date rear first intermediate wheel  137 , whereby the standard time is corrected. The train wheel setting lever  139  locks onto the setting lever  131 , and the fourth first intermediate wheel  109  is set in conjunction with the pulling out of the setting stem  130 . 
     The intermediate wheels  134  through  137 , which are provided herein because of the separation of the crown  17  and the hour and minute hands  11  and  12 , are toothed wheels that do not increase or reduce speed, and therefore are configured from toothed wheels similar to the minute wheel  138 . Thus, the cost does not greatly increase even if the number of toothed wheels increases. 
     [2-1-3. Chronograph Train Wheel] 
     The chronograph timepiece is configured with a chronograph electric motor  201  and a chronograph train wheel. 
     The chronograph electric motor  201 , which is a drive source for the chronograph train wheel, is configured from a coil  202 , a stator  203 , and a rotor  204 , and is disposed roughly in the 12:00 direction of the timepiece  1 . In the chronograph electric motor  201 , the rotor  204  is rotatably driven by a drive signal from the electric circuit. 
     The rotation of the rotor  204  is transmitted to a second CG wheel  208  via a second CG third intermediate wheel  205 , a second CG second intermediate wheel  206 , and a second CG first intermediate wheel  207 , and the chronograph second are displayed by the second CG hand  14  supported by the second CG wheel  208 . 
     The rotation transmitted to the second CG first intermediate wheel  207  is transmitted from the second CG first intermediate wheel  207  to a minute CG wheel  220  via a minute CG second intermediate wheel  222  and a minute CG first intermediate wheel  221 , and the chronograph minutes are displayed by the minute CG hand  15  supported by the minute CG wheel  220 . Specifically, the second CG first intermediate wheel  207  has two pinions at the top and bottom, and the second CG wheel  208  interlocks with one pinion, while the second intermediate wheel  222  interlocks with the other pinion. 
     The second CG wheel  208  and minute CG wheel  220  both have heart-cams  210  and  224  for resetting to zero. Among the rods and toothed wheels constituting the second CG wheel  208  and minute CG wheel  220 , the same rods are used for the gears  208  and  220 , while only the toothed wheels differ. The second CG wheel  208  and the minute CG wheel  220  are disposed in a cross-sectional misalignment because the pointer lengths differ as shown in  FIG. 7 . 
     A train wheel bridge  401  is mounted on the top of the basic timepiece train wheel and the chronograph train wheel mounted in the first layer of the movement  100  described above (next to the back cover), as shown in  FIG. 8 , and upper tenons (those next to the back cover) of the basic timepiece train wheel and the chronograph train wheel are supported in a rotatable manner by the train wheel bridge  401 . Specifically, the basic timepiece train wheel and the chronograph train wheel are supported between the circuit cover  700  and the train wheel bridge  401  installed on the top surface of the main plate  400 . 
     [2-2. Configuration of Middle Layer of Movement] 
     A printed circuit board  501  is mounted on the train wheel bridge  401  (next to the back cover), as shown in  FIG. 9 . The printed circuit board  501  is formed into a flat rough C-shape along the inner periphery of the case of the timepiece I. The board extends from the section in which the start and stop button  18  is disposed roughly in the 2:00 direction of the timepiece  1 , to the reset button  19 , the 6:00 position, and the 10:00 position at which the electric motors are disposed. 
     The driving of the electric motors  101  and  201  can be controlled, and the operating state of the buttons  18  and  19  detected, by an IC or another such electric circuit provided to the printed circuit board  501 . 
     Furthermore, the printed circuit board  501  is provided with a conduction terminal section  502  having four conduction terminals for providing conduction with the circuits in the second layer. 
     [2-3. Configuration of Second Layer of Movement] 
     A coil block for power generation, a stator, a power-generating train wheel, a secondary battery for charging electric energy, and a chronograph resetting mechanism are mounted in the second layer of the movement  100 . 
     The second layer of the movement has a circuit cover  600  disposed in overlapping fashion on the printed circuit board  501  (next to the back cover), as shown in  FIG. 10 . The circuit cover  600  constitutes a base for the power generator, the secondary battery, and the resetting mechanism. 
     Specifically, a power generator  610  with a power-generating coil block  611 , a power-generating stator  612 , and a power-generating rotor  613  is disposed roughly in the 4:00 direction of the circuit cover  600 , as shown in  FIGS. 11 and 12 . 
     A virtually cylindrical bed  620  for mounting a secondary power source  640  is formed roughly in the 8:00 direction, and a conduction board  630  is disposed along the outer periphery thereof. Disposing four conduction coils  631  in four through-holes formed in the circuit cover  600  allows the ends thereof to be in contact with the terminals of the printed circuit board  501  and the conduction board  630 . The printed circuit board  501 , which is electrically connected to the electric motors  101  and  201  and other components of the first layer of the movement  100 , is thereby configured to electrical connections to be made via the conduction coils  631 , as is the conduction board  630  electrically connected to the power generator  610  or the secondary power source  640  of the second layer. 
     The circuit cover  600  supports the upper tenons on the shafts of the second CG wheel  208  and second CG first intermediate wheel  207  in a rotatable manner. 
     Furthermore, heart-cams  210  and  224 , a hammer  330  in contact with the heart-cams  210  and  224 , an operating lever  340  that rotates as the start and stop button  18  is pressed to separate the hammer  330  from the heart-cams  210  and  224 , a transmission lever  310  and transmission hammer  320  that rotate when the reset button  19  is pressed to bring the hammer  330  into contact with the heart-cams  210  and  224 , and other such levers constituting the resetting mechanism are mounted extending roughly from the 4:00 position to the 10:00 position of the timepiece  1  so as to overlap in the vertical direction of the CG train wheel or CG electric motor  201 . 
     The lever components constituting the resetting mechanism are also mounted so as to: 
     not overlap in the same plane as the power generator  610  or secondary power source  640 . 
     A switch input terminal  341  is formed integrally with the operating lever  340 , and the switch input terminal  341  comes into contact with the terminals of the printed circuit board  501  when the start and stop button  18  is pressed, making it possible to detect the pressing of the button  18 , or, in other words, the input of the switch. 
     A return-to-zero holder  360  is mounted on the levers  310 ,  320 ,  330 , and  340  of the return-to-zero mechanism (next to the back cover), as shown in  FIG. 12 , and the levers  310 ,  320 ,  330 , and  340  are supported between the return-to-zero holder  360  and the circuit cover  600 . A click spring  361  interlocking with a pin protruding from the operating lever  340 , and a click spring  362  interlocking with a pin protruding from the transmission hammer  320 , are formed integrally in the return-to-zero holder  360 . 
     Also, a spring  363  with which the reset button  19  is in contact is formed on the return-to-zero holder  360 , as shown in  FIG. 12 . Therefore, the transmission lever  310  is pressed via the spring  363  and is rotated when the reset button  19  is pressed. The spring  363  elastically holds an input terminal section  364  formed on the side facing the return-to-zero holder, and when the reset button 
       19  is pressed, the spring  363  releases the input terminal section  364  formed on the return-to-zero holder  360 , and the input terminal section  364  comes into contact with a reset terminal provided to the printed circuit board  501 . Thus, it is possible to detect when the reset button  19  is pressed. 
     A rotor transmission wheel  614  for interlocking with the power-generating rotor  613  is also mounted on the upper side of the return-to-zero holder  360 . 
     Furthermore, an oscillating-weight support  460  is mounted on the return-to-zero holder  360 , as shown in  FIG. 13 . The upper tenons on the shafts of the power-generating rotor  613 , the rotor transmission wheel  614 , the minute CG wheel  220 , and the minute CG first intermediate wheel  221  are supported by the oscillating-weight support  460  in a rotatable manner. 
     Also, the secondary power source  640  is mounted in the bed  620 . The secondary power source  640  is configured so that a secondary power source unit is integrated by welding with a secondary battery and a negative terminal. The secondary power source  640  is fixed to the movement  100  by a secondary battery holder  641 , which is a metal member, with two screws via an insulation board, and is designed to be assembled after all other movement components. A negative lead plate  642  for the secondary battery is also attached to the secondary power source  640 . 
     An oscillating weight wheel  470  and an oscillating weight  480  are mounted on the oscillating-weight support  460 , as shown in  FIG. 14 . The oscillating weight wheel  470  interlocks with the pinion of the rotor transmission wheel  614  protruding from the oscillating-weight support  460 . Therefore, the power-generating rotor  613  rotates via the rotor transmission wheel  614 , and the power generator  610  generates electricity when the oscillating weight wheel  470  rotates along with the rotation of the oscillating weight  480 . 
     [3-1. Operation of Basic Timepiece] 
     In the present embodiment, the oscillating weight  480  rotates when the timepiece  1  is mounted or otherwise placed on the arm and moved. The power-generating rotor  613  rotates via the oscillating weight wheel  470  and rotor transmission wheel  614  along with the rotation of the oscillating weight  480 , and electric power is generated. 
     The electric power generated by the power generator  610  is rectified by the rectifying circuit electrically connected via the conduction board  630  or conduction coils  631 , and is then supplied and charged to the secondary power source  640 . 
     The electric power charged to the secondary power source  640  is supplied to the printed circuit board  501  via the conduction board  630  or conduction coils  631 . The liquid crystal oscillator, IC, or other such control device mounted on the printed circuit board  501  is thereby driven, and a drive pulse outputted from this control device drives the basic timepiece electric motor  101 . 
     When the basic timepiece electric motor  101  is driven and the rotor  104  rotates, the rotation is transmitted to the small second wheel and pinion  106  via the fifth wheel and pinion  105 , and the second hand  13  operates as previously described. 
     The rotation of the rotor  104  is simultaneously transmitted via the fifth wheel and pinion  105 , the intermediate wheels  107  through  109 , the third wheel and pinion  110 , the center wheel and pinion  111 , the minute wheel, and other such basic timepiece train wheels, whereby the hour hand  11  and the minute hand  12  operate. 
     [3-2. Operation of Chronograph Timepiece] 
     On the other hand, when the chronograph timepiece function is utilized, the start and stop button  18  is first pressed. The hammer  330  is then moved via the operating lever  340 , the hammer  330  is separated from the heart-cams  210  and  224 , and the setting of the second CG wheel  208  and minute CG wheel  220  is released. 
     The switch input terminal  341  is simultaneously brought into contact with the printed circuit board  501  to turn on the switch input by pressing the start and stop button  18 , and a drive signal is sent from the control circuit to the electric motor  201  to drive the electric motor  201 . 
     The rotation of the rotor  204  of the CG electric motor  201  is transmitted to the second CG wheel  208  and minute CG wheel  220  via the CG train wheel, and the second CG hand  14  and minute CG hand  15  are both operated. 
     When the start and stop button  18  is released, the operating lever  340  returns to its original position due to the elastic force of the click spring  361 , and the switch input terminal  341  is separated from the printed circuit board  501 . Specifically, the CG electric motor  201  continues to be driven and the chronograph timekeeping continues. 
     While the CG electric motor  201  is being driven, the operating lever  340  rotates again and the switch input is turned on when the start and stop button  18  is pressed. Thus, the CG electric motor  201  stops, and the second CG hand  14  and minute CG hand  15  also stop. 
     If the start and stop button  18  is then pressed once again, the CG electric motor  201  begins to be driven again and the second CG hand  14  and minute CG hand  15  also begin to operate again. Thereafter, every time the start and stop button  18  is pressed, the CG electric motor  201  stops, driving repeats in an alternating fashion, and the chronograph time is cumulatively measured. 
     On the other hand, when the reset button  19  is pressed, the hammer  330  is moved via the transmission lever  310  and the transmission hammer  320 , the hammer  330  applies pressure to the heart-cams  210  and  224  of the second CG wheel  208  and minute CG wheel  220 , and the hands  14  and  15  are returned to zero. 
     The present embodiment is designed so that a chronograph train wheel setting lever that is set by pressure from the second CG second intermediate wheel  206  is provided, and the rotor  204  of the CG electric motor  201  does not rotate along with the resetting operation of the second CG wheel  208  and minute CG wheel  220  when the reset button  19  is pressed. The chronograph train wheel setting lever  350  is axially supported by an axle provided to the circuit cover  600 , and is driven by the transmission hammer  320 . Furthermore, when the reset button  19  is pressed, the input terminal section  364  comes into contact with the reset terminal due to the releasing of the input terminal section  364  by the spring  363 , and the electric circuit for controlling the CG electric motor  201  is reset when the reset switch is inputted. 
     Furthermore, after the start operation is performed, the second CG hand  14  and minute CG hand  15  automatically stop simultaneously without the stop operation being performed when the maximum measurable time of 45 minutes has passed. At this point, the second CG hand  14  automatically stops exactly above the indicator  3 Ca, which is the return-to-zero position. The minute CG hand  15  continues to move at the speed of the measured time past the indicator  3 Da (the second CG hand  14  also continues to move in the process), and stops after reaching the end of the extra display section  3 E. 
     The electrical state during automatic stopping is the same as the one during manual stopping, but the mechanical state is such that the chronograph train wheel setting lever  350  applies pressure to the second CG second intermediate wheel  206 , and the chronograph train wheel is controlled by the chronograph train wheel setting lever  350  through a reset operation performed after automatic stopping. Also, the CG hands  14  and  15  are automatically stopped by a procedure in which motor pulses outputted to the chronograph motor  201  are counted following the start operation, and in which it is determined that a specific pulse count has been outputted. 
     If the return-to-zero operation is then performed, the second CG hand  14  reaches the return-to-zero condition by maintaining its position unchanged, and the minute CG hand  15  instantaneously returns to zero by rotating in the opposite direction to the direction of rotation. 
     An example of automatic stopping will now be described in more detail using  FIGS. 15 through 17 . 
     The chronograph timepiece  1  has a switch  1710 , a mode control circuit  1824 , a chronograph standard signal generating circuit  1825 , and an automatic stopping counter  1829  as a chronograph control circuit, as shown in the block diagram in  FIG. 15 . 
     The switch  1710  basically consists of a start and stop switch  1821  and a reset switch  1822 , operated by the start and stop button  18  and the reset button  19 , respectively. The start and stop switch  1821  is adapted to turn on or off when the start and stop button  18  is operated, and the reset switch  1822  to turn on or off when the reset button  19  is operated. 
     The start and stop switch  1821  is adapted to turn on as a result of one operation of the transmission lever  310 , for example, and to turn off due to a second operation. This is then repeated every time the start and stop switch  1821  is pressed. The reset switch  1822  also operates in a substantially similar manner. 
     The mode control circuit  1824  outputs a start and stop control signal SMC or a reset control signal SRC to the chronograph standard signal generating circuit  1825  on the basis of a start signal SST and a stop signal SSP, or a reset signal SRT from the switch  1710 . Also, the mode control circuit  1824  controls the operation mode of the chronograph portion by outputting the reset control signal SRC to the automatic stopping counter  1829 , chronograph standard signal generating circuit  1825 , and the like. The mode control circuit  1824  has a circuit for preventing the reset switch  1822  from chattering. 
     The chronograph standard signal generating circuit  1825  controls the chronograph motor  201  by outputting a chronograph standard signal SCB to a motor pulse generating circuit (pointer drive device)  1826  ( FIG. 16 ) on the basis of the start and stop control signal SMC from the mode control circuit  1824 . The chronograph standard signal generating circuit  1825  drives the chronograph motor  201  when the start and stop control signal SMC is inputted, and stops the chronograph motor  201  during the stop operation. 
     The automatic stopping counter (pointer stopping device)  1829  performs the counting of the chronograph portion due to the inputting of the chronograph standard signal SCB from the chronograph standard signal generating circuit  1825 . The chronograph standard signal SCB is a synchronization signal for producing the generation timing of the motor pulse SPC ( FIG. 16 ), and the automatic stopping counter  1829  counts the chronograph standard signal SCB. The automatic stopping counter  1829  outputs an automatic stopping signal SAS to the mode control circuit  1824  after the passage of the maximum measurable time; for example, 45 minutes plus a specific period. 
       FIG. 16  is a block diagram showing the chronograph control circuit in  FIG. 15  and the peripheral circuitry. 
     The mode control circuit  1824 , as part of the chronograph control section, has a start and stop control circuit (drive initiation device)  1735 , a reset control circuit  1736 , an automatic stopping state latch circuit  1731 , an OR circuit  173 , and two AND circuits  1733  and  1734 . 
     The start and stop control circuit  1735  is a circuit for detecting the on/off state of the start and stop switch  1821 . The start and stop control circuit  1735  outputs a signal of the state of measurement or non-measurement, depending on whether the start and stop switch  1821  has been operated, to the AND circuit  1733  or the like. 
     The reset control circuit  1736  is a circuit for detecting the on/off state of the reset switch  1822 . The reset control circuit  1736  outputs a signal for resetting chronograph control and the like, depending on whether the reset switch  1822  has been operated, to the OR circuit  1732 . 
     According to the automatic stopping signal SAS from the automatic stopping counter  1829 , the automatic stopping state latch circuit  1731  outputs an L-level signal when the AND circuit  1733  and OR circuit  1732  are not in an automatically stopped state, and outputs an H-level signal for an automatically stopped state. 
     A signal from the automatic stopping state latch circuit  1731  and a signal from the reset control circuit  1736  are inputted to the OR circuit  1732 , and are then outputted to the chronograph standard signal generating circuit  1825 , the motor pulse generating circuit  1826 , the automatic stopping counter  1829 , and the like. The first AND circuit  1733  is presented with an inverted input signal from the automatic stopping state latch circuit  1731 , and an output signal from the start and stop control circuit  1735 . The first AND circuit  1733  then provides an output to the second AND circuit  1734 . The second AND circuit  1734  is presented with the output signal from the first AND circuit  1733  and with a signal SHD (for example, a 128 Hz pulse signal) generated by a high-frequency clock division circuit (not shown). 
     With such a configuration, the operation of the circuits in  FIG. 16  will now be described. 
     In the reset state, the start and stop switch  1821  turns on when the start and stop button  18  is operated. A start signal SST is then inputted to the mode control circuit  1824 . The start and stop control circuit  1735  performs sampling to confirm that the start and stop switch  1821  is on. Consequently, the mode control circuit  1824  raises the output of the AND circuit  1733  to an H level, and outputs a start and stop control signal SMC, which is a pulse signal of 128 Hz, for example, from the AND circuit  1734  to the chronograph standard signal generating circuit  1825 , and the chronograph standard signal generating circuit  1825  outputs a chronograph standard signal SCB, which is a pulse signal of ⅕ Hz, for example. Thus, the motor pulse generating circuit  1826  outputs a motor pulse SPC for controlling the driving of the chronograph motor  201  on the basis of the chronograph standard signal SCB, and the pointer movement in the chronograph portion is initiated. 
     The automatic stopping counter  1829  then counts the chronograph standard signal SCB from the chronograph standard signal generating circuit  1825 , and outputs the automatic stopping signal SAS to the automatic stopping state latch circuit  1731  of the mode control circuit  1824  when the count value corresponds to the automatic stopping position. 
     The automatic stopping state latch circuit  1731  outputs an H-level signal, for example, to the OR circuit  1732  and the AND circuit  1733 ; the OR circuit  1732  therefore outputs an H-level signal; the chronograph standard signal generating circuit  1825 , the motor pulse generating circuit  1826 , and the automatic stopping counter  1829  are reset; and the rotation of the CG hands  14  and  15  is stopped. Also, since the output signal of the AND circuit  1733  is at an L level, the output of the AND circuit  1734  is also at an L level, and the start and stop control signal SMC is no longer outputted from the mode control circuit  1824  to the chronograph standard signal generating circuit  1825 . 
       FIG. 17  is a flow chart showing the automatic stopping process of the chronograph. The automatic stopping process will now be described with reference to  FIG. 17 . 
     &lt;Processing of Hand Positions Until the Automatic Stopping Position is Reached&gt; 
     When the start and stop button  18  is operated, a start signal SST is inputted to the mode control circuit  1824 . Thus, the mode control circuit  1824  outputs a start and stop control signal SMC to the chronograph standard signal generating circuit  1825 . 
     The chronograph standard signal generating circuit  1825  divides the start and stop control signal SMC, which is 128 Hz, for example, and creates a chronograph standard signal SCB of ⅕ Hz, for example. A standby state occurs when there is no motor pulse SPC output or no change in the chronograph standard signal SCB for performing the counting process of the automatic stopping counter  1829  by the trailing or rising of the chronograph standard signal SCB (step ST 1 ). When the chronograph standard signal SCB is outputted, the motor pulse generating circuit  1826  generates a motor pulse SPC synchronously with the trailing thereof, and initiates output. The chronograph motor  201  is driven due to the output of the motor pulse SPC. The CG hands  14  and  15  are driven in this manner (step ST 2 ). 
     The automatic stopping counter  1829  counts up the automatic stopping counter value by +1 from the trailing of the chronograph standard signal SCB on the basis of the rise in the chronograph standard signal SCB after 1/128 second, for example (step ST 3 ). When the counted-up automatic stopping counter value is not 1 plus the counter value corresponding to the automatic stopping position of the CG hands  14  and  15 , the process returns to step ST 1  and the operation described above is repeated (step ST 4 ). Thus, the CG hands  14  and  15  rotate and time measurement continues. 
     &lt;Processing Performed when Hands Have Reached Automatic Stopping Position&gt; 
     When the automatic stopping counter value is 1 plus the counter value corresponding to the automatic stopping position (step ST 4 ), the automatic stopping counter  1829  outputs an automatic stopping signal SAS to the mode control circuit  1824 . The mode control circuit  1824  thereby brings the output signal of the automatic stopping state latch circuit  1731  to an H level, and the H level reset control signal SRC is outputted from the OR circuit  1732  to the chronograph standard signal generating circuit  1825 , the motor pulse generating circuit  1826 , and the automatic stopping counter  1829  (step ST 5 ). The chronograph standard signal generating circuit  1825 , the motor pulse generating circuit  1826 , and the automatic stopping counter  1829  are reset by this operation, the output from the motor pulse generating circuit  1826  to the chronograph motor  201  is discontinued, and the counter value of the automatic stopping counter  1829  becomes “0 (zero)” (step ST 6 ). The CG hands  14  and  15  thereby automatically stop at their respective predetermined automatic stopping positions. The automatic stopping unit relating to the present invention is thus configured with the automatic stopping state latch circuit  1731  and the automatic stopping counter  1829 . 
     The movement of the CG hands  14  and  15  may be stopped by mechanical automatic stopping devices, and is not limited to processes such as those described above. A possible example of such a mechanical device is a structure wherein a protrusion that doubles as an electric switch is provided within the movement path of the heart-cam  224 , the heart-cam  224  comes into contact the protrusion, and a reset signal is generated by this electric contact. 
     [3-3. Time Correction Operation of Basic Timepiece] 
     To correct the time indicated by the basic timepiece, the crown  17  is pulled out to the time correction position, and the setting stem  130  is also pulled out. As a result, when the setting stem  130  is rotated, the rotation is transmitted to the center wheel and pinion  111  via the setting-wheel  134 , the intermediate wheels  135  through  137 , and the minute wheel  138  and the standard time is corrected because the setting lever  131  and bolt  132  are interlocked and the clutch wheel  133  and setting-wheel  134  are engaged. The rotation of the setting stem  130  herein is not transmitted to the basic timepiece electric motor  101  because the train wheel setting lever  139  operates in an interlocked fashion with the pulling out of the setting stem  130  to set the fourth first intermediate wheel  109 . 
     The present embodiment as such has the following effects. 
     (1) Specifically, in the chronograph timepiece  1 , the CG hands  14  and  15  automatically stop after the maximum measurable time of 45 minutes has passed since the starting of the chronograph function, but the rotational trajectory of the minute CG hand  15  is a fan pattern and the minute CG hand  15  does not rotate in full circle unlike in conventional practice or the second CG hand  14 , so the automatic stopping position of the minute CG hand  15  is not the zero position and is not a position slightly past the zero position. 
     Therefore, if the minute CG hand  15  has stopped past the indicator  3 Da provided along the rotational trajectory, it is possible to determine that the position thereof is specifically an automatically stopped position. Also, if the minute CG hand  15  has stopped above any of the marks in the indicator  3 D located within the rotational trajectory, it is possible to determine that the position thereof is a position where the hand has stopped due to the stop operation. Moreover, since the condition in which the hand has stopped at the zero position is no different than the return-to-zero condition, it is possible to determine that the hand that has stopped at the zero position is the result of a return-to-zero operation and a state wherein the electronic circuits have been reset has been reached. As a result, it is possible to more reliably determine what type of stopped state the minute CG hand  15  is in on the basis of the stopped position of the minute CG hand  15 . 
     (2) Another feature of the chronograph timepiece  1  is that the minute CG hand  15  automatically stops at a position past the indicator  3 Da that corresponds to the maximum measurable time when the maximum measurable time has passed. Therefore, if the minute CG hand  15  has stopped above such indicator  3 Da as a result of the stop operation, the measurement results are seen to be equivalent to the exact maximum measurable time, specifically, 45 minutes, and the maximum measurable time can be accurately measured. 
     In other words, normally, if the minute CG hand  15  stops above the indicator  3 Da during automatic stopping, such as when a runner reaches his goal and stops the timepiece, the runner, after stopping the timepiece  1  and looking at the timepiece to confirm the measurement results, sees that the minute CG hand  15  has stopped exactly above the indicator  3 Da, finds himself in a situation in which he cannot determine whether the timepiece has stopped due to automatic stopping or due to the stop operation, and is incapable of measuring the maximum measurable time. However, there is no concern over whether such a situation will occur with the timepiece  1 . 
     (3) Furthermore, in the timepiece  1 , an extra display section  3 E different from the indicator  3 D is provided to an area past the indicator  3 Da of the maximum measurable time, and the minute CG hand  15  automatically stops above the extra display section  3 E, so the stopped state of the minute CG hand  15  due to automatic stopping is easier to observe and the readability can be further improved to make the timepiece easier to use. 
     The indicator  3 D is narrow and is shaped as black lines, and the extra display section  3 E is wide, has an indicator width of 3 minutes, and is red unlike the indicator  3 D. Therefore, when the minute CG hand  15  exceeds the maximum measurable time and is above the extra display section  3 E, it is possible to more accurately determine that the hand is not above the normal indicator  3 D, and, as a result, the readability can be further improved and the outward design can also be improved. 
     (4) Since only the rotational trajectory of the minute CG hand  15  for indicating the chronograph minutes, which are larger units than the chronograph second, is a fan pattern, providing the indicator  3 C for indicating the chronograph second in a circle dispenses with the need to make the indicator  3 C thin and dense, and the chance of hindering readability can be prevented. 
     (5) Also, since the second CG hand  14  automatically stops above the indicator  3 Ca at the zero position when the maximum measurable time has passed, it is easy to determine from this stopped state that the hand is in the automatic stopping state in conjunction with the stopped state of the minute CG hand  15 . Additionally, the second CG hand  14  can be made more visible than when it stops at a position halfway through the circular rotational trajectory, and the design of the automatically stopped state can be improved. 
     (6) Since the CG hands  14  and  15  are returned to zero with a mechanical return-to-zero mechanism that has the heart-cams  210  and  224  and the hammer  330 , even a very long minute CG hand  15  can be mechanically reset very rapidly, which provides a dynamic feel. 
     (7) Particularly since the rotational trajectory of the minute CG hand  15  is a fan pattern, the minute CG hand  15  must be returned to zero by changing its drive direction in order to return the minute CG hand  15  in the chronograph motor  201  to zero, and the chronograph motor  201  is limited to a design in which only direct rotation and reverse rotation can be implemented. However, a motor capable of such direct and reverse rotation must use a primary battery or the like with low voltage fluctuation as a power source, but if the rotation of an oscillating weight  480  is converted to electrical energy by a power generator  610  and supplied to a secondary power source  640 , and the secondary power source  640  is used to drive the motor, voltage fluctuation makes it impossible to drive such a motor, which creates restrictions in the design of the timepiece  1 . In the present embodiment, in which mechanical resetting is employed, the chronograph motor  201  may perform only direct rotation (in one direction), and is therefore designed to be resistant to voltage fluctuation and to be accurately driven using either a primary power source (primary battery) or the secondary power source  640 , without any restrictions being imposed on the design of the timepiece  1 . 
     (8) Furthermore, as a result of the chronograph motor  201  being resistant to voltage fluctuation, the chronograph motor  201  can be reliably driven even when the electrical charge of the secondary power source  640  is extremely low, and measuring with the CG hands  14  and  15  is immediately possible by providing, for example, a slight charge even when the hands have stopped due to a charging failure. 
     (9) Because of mechanical resetting, the angle during movement of the minute CG hand  15  in a fan pattern can be easily and rapidly changed by varying the reduction rate of the chronograph train wheel, which makes commercial development possible with a wide range of designs for the chronograph timepiece  1 , and can improve the level of customer satisfaction. In other words, with electrical resetting, in which a specific number of motor pulses are outputted by IC control, the IC design must be modified when the angle of rotation in a fan pattern is changed, but modifying the design is difficult, time-consuming, and disadvantageous in terms of responding to customer demand. 
     (10) The readings provided of the hands can be easily seen by the user because the second CG hand  14  is provided independently, the shaft  14 A thereof does not coincide with the shafts of the other hands, and the standard time display separates the second hand  13  from the hour and minute hands  11  and  12 . The minute CG hand  15  is also provided independently and the indication thereof can therefore be read more easily. Consequently, the multifunction timepiece  1  with a chronograph timepiece function and numerous pointers can be made into a timepiece with good visibility whereby the indications of the pointers can be accurately confirmed. 
     Also, the train wheels for driving the hands  11  through  15  can be mounted separate from each other, and the overlapping of the train wheels or the overlapping of the hands in cross section can be minimized because, except for the hour and minute hands  11  and  12 , the hands  11  through  15  are mounted independently. Therefore, the multifunction timepiece  1  can be made thinner in shape even if it has many pointers. 
     (11) Since the shaft  14 A of the second CG hand  14  is disposed somewhat eccentric from the center  4 A of the time display section  4 , the lengths of the hour hand  111  and minute hand  12 , which must be disposed so as not to interfere with the shaft  14 A, can be increased by a value corresponding to the length of eccentricity. Therefore, the hands  111  and  12  can be made relatively long and the visibility of the standard time can be improved even when the hour and minute hands  11  and  12  for displaying the standard time are separated from the second CG hand  14  and are disposed in the 6:00 position of the time display section  4 . 
     Furthermore, the second CG hand  14  is set with the shaft  14 A disposed somewhat eccentric from the center  4 A of the time display section  4  and is made longer than the hands  11  through  13  and  15 . In this regard as well, a dynamic operation can be achieved for the hand  14  during mechanical resetting, and visibility can be improved. 
     (12) Since the minute CG hand  15  moves in a fan pattern, the shaft  15 A thereof can be disposed near the shaft  14 A of the second CG hand  14 . Specifically, the distance between the shafts  14 A and  15 A can be less than the length L 4  of the minute CG hand  15 . Therefore, the shaft  15 A of the minute CG hand  15  can be disposed adjacent to the center  4 A of the time display section  4 , and the indication of the minute CG hand  15  can be easily read because the length L 4  of the minute CG hand  15  is proportionately increased. 
     Also, the cam contact points of the hammer  330  in contact with the heart-cams  210  and  224  can be adjacent to each other, and the hammer  330  in contact with the heart-cams  210  and  224  can be easily integrated and reduced in size because the shafts  14 A and  15 A are adjacent to each other when the chronograph hands  14  and  15  are returned to zero in a mechanical resetting configuration. 
     (13) At least two of the toothed wheels  107  through  109  that do not increase or decrease speed are disposed between the rotor  104  of the basic timepiece electric motor  101  and the gears on which the hour and minute hands  11  and  12  are mounted (center wheel and pinion  111 , hour wheel), and the cost of the components can be reduced because these toothed wheels  107  through  109  are configured from similar gears. Therefore, the cost can be reduced even when there is a large distance between the second hand  13  and the hour and minute hands  11  and  12 . 
     (14) In a regular timepiece, the conduction structure of the secondary power source and the printed circuit board is given priority, and the secondary power source is disposed on the bottom layer (first layer) of the printed circuit board, but when the secondary power source is disposed on the bottom layer, electrical conduction from the secondary power source must be cut off when the circuit is electrically inspected after the components are assembled. Therefore, components such as positive terminals are designed to be incorporated last, and caution must be taken so that the secondary power source is not conductive during the assembly steps. 
     Accordingly, in the present embodiment, the secondary power source  640  is incorporated last in the steps of assembling the movement  100  because the secondary power source  640  is disposed in the second layer (top layer) next to the back cover  30 , and an electrical inspection on the circuits during the assembly step can be easily performed. Therefore, assembly, construction, and productivity can be improved. 
     (15) The hammer  330 , operating lever  340 , and other components that strike the heart-cams  210  and  224  can be efficiently mounted because the resetting mechanism is mounted on the top layer of the CG train wheel. Therefore, a multifunction timepiece  1  having a plurality of components can be accommodated to the size of a normal wristwatch. 
     (16) Circuits separated in the vertical direction can be reliably connected to each other in a simple configuration because the printed circuit board  501  and the secondary power source  640  in the second layer or the like are electrically connected by utilizing the conduction coils  631 . 
     (17) A good balance is established between the positions of the hands, and design is improved because the second CG hand  14  is disposed at a position eccentric to the 12:00 direction from the center  4 A of the time display section  4 , the hour hand  11  and minute hand  12  are disposed at a position eccentric to the 6:00 direction from the center  4 A, the second hand  13  is disposed at a position eccentric roughly in the 10:00 direction in relation to the center  4 A, and the minute CG hand  15  is disposed at a position eccentric roughly in the 2:00 direction in relation to the center  4 A. 
     Additionally, since the minute CG hand  15  that moves in a fan pattern is disposed in roughly the 2:00 direction, the operation of the hands can be easily understood because the minute CG hand  15  rotates from the reset position around the timepiece, that is, in the same direction as the other hands. 
     The present invention is not limited to the embodiments previously described and includes other configurations and modifications that allow the objectives of the present invention to be achieved, and modifications such as those shown below are also included in the present invention. 
     For example, the maximum measurable time of the minute chronograph time was 45 minutes in the embodiments previously described, but this maximum measurable time may be arbitrary and is not limited to 45 minutes. 
     Also, the indicator  3 D of the minute chronograph time was provided along a circular arcuate portion in a fan pattern that extended across a 135° angle, but the angle of the fan pattern is not limited to 135° and may be arbitrarily determined with consideration to the reduction rate between the second CG wheel  208  and minute CG wheel  220 , the maximum measurable time, and the like. For example, the display may be a fan pattern of 270° with a reduction rate of 1/60, or a fan pattern of 180° with a reduction rate of 1/90, even with the same 45-minute timer. The display may also be made into a fan pattern of 180° by using a 60-minute timer in which the reduction rate is kept unchanged at 1/120. 
     Two pointers, the second CG hand  14  and minute CG hand  15 , were provided in the embodiments previously described, but an hour CG hand for indicating the hour chronograph time may also be provided, in which case the hour CG hand would be rotated in a fan pattern as an indicator of the largest units. Alternatively, a second CG hand  14  alone may be provided or a ⅕ or 1/10 second CG hand may be provided, in which case the CG hand is rotated in a fan pattern as an indicator of the largest units. 
     In the embodiments previously described, the second CG hand  14  is provided so as to stop exactly over the indicator  3 Ca, which is the zero position, when the minute CG hand  15  stops over the extra display section  3 E, but the stopping position of circularly rotating pointers such as the second CG hand  14  is arbitrary and is not limited to the zero position. 
     The second CG hand  14  for indicating low-order units of second chronograph time rotates in a circle in the embodiments previously described, but the concept of such a pointer for low-order units rotating in a fan pattern is also included in the present invention. 
     The extra display section  3 E was provided to the extended section of the indicator  3 Da in the embodiments previously described, but such an extra display section  3 E is not an indispensable component of the present invention and can be omitted. Specifically, cases in which the area for the automatic stopping of the minute CG hand  15  has the same color as the surface of the dial  3  are also included in the present invention. 
     The timing device of the present invention is not limited to the chronograph timepiece  1  in the embodiments previously described and may, for example, be any device whereby time information can be measured, such as a pointer-type stopwatch or timer. 
     In addition, the preferred configurations, methods, and the like for carrying out the present invention are disclosed in the above descriptions, but the present invention is not limited thereto. Specifically, the present invention is particularly illustrated and described pertaining primarily to specific embodiments, but those skilled in the art can make various modifications to the shapes, materials, quantities, and other specific details of the embodiments described above without deviating from the scope of the technical ideas and objectives of the present invention. 
     Therefore, the descriptions that are disclosed above and refer to specific shapes, materials, and other items are given solely with the intent of making the present invention easy to understand and are not intended to limit the present invention. For this reason, descriptions that contain names of members in which some or all of the limitations on shapes, materials, and other items have been removed are also included in the present invention. 
     The terms “front,” “back,” “up,” “down,” “perpendicular,” “horizontal,” “slanted,” and other direction-related terms used above indicate the directions in the diagrams used. Therefore, the direction-related terms used to describe the present invention should be interpreted in relative terms as applied to the diagrams used. 
     “Substantially,” “essentially,” “about,” and other terms that are used above and represent an approximation indicate a reasonable amount of deviation that does not bring about a considerable change as a result. Terms that represent these approximations should be interpreted so as to include a minimum error of about +5%, as long as there is no considerable change due to the deviation. 
     The disclosures in Japanese Patent Application Nos. 2003-152850 and 2004-129772 are incorporated herein in their entirety by reference. 
     The embodiments described above are only some of the embodiments of the present invention, but it is apparent to those skilled in the art that it is possible to add modifications to the above-described embodiments by using the above-described disclosure without exceeding the range of the present invention as defined in the claims. The above-described embodiments furthermore do not limit the range of the present invention, which is defined by the accompanying claims or equivalents thereof, and are designed solely to provide a description of the present invention.