Patent Publication Number: US-9423773-B2

Title: Clock mechanism for storing and displaying time information

Description:
The invention relates to a clock mechanism for storing time information. The invention also relates to a clock movement comprising such a mechanism for storing time information. The invention further relates to a timepiece, notably a watch, comprising such a movement or such a mechanism. 
     Devices for storing time information, notably seconds, are known from the prior art. A split-time chronograph is a known example of this. 
     In this type of chronograph, a second secondhand, commonly referred to as a flyback hand, is superposed on the sweeping hand of the chronograph. When the chronograph pushbutton for starting the stopwatch is pressed, the flyback hand remains superposed on the sweeping hand. A first press of the split-time pushbutton causes the flyback hand to stop, while the sweeping hand continues its sweep. A second press of the split-time pushbutton returns the flyback hand to the sweeping hand. 
     Such a device is described for example in the work by B. Humbert entitled “Le chronographe [the chronograph]” (chapter 13) or in patent CH682201. In addition to the conventional chronograph mechanism, the device in patent CH682201 uses a control system designed to control a flyback mobile which consists of a control cam able to rotate, notably a column wheel, and of a pair of immobilizing clamps. 
     Aside from the fact of employing a considerable number of components, notably a complex chronograph engagement device which allows the flyback mobile to be connected selectively to the geartrain of the basic movement, the main disadvantage with the conventional split-time chronograph is that it is unable to store times in excess of one minute. To overcome this shortcoming, patent application EP1584997 discloses a split-time chronograph that allows the seconds and minutes of a timed period to be stored. Thus, the storage capability of the split-time function is no longer limited to sixty seconds but extended to the number of minutes which are displayed by the minutes counter of the chronograph, thirty minutes in that instance. This device uses a minutes flyback mobile the particular feature of which is that it is actuated by the same column wheel as is used to actuate the seconds flyback mobile. Such a solution is appropriate because the two flyback mobiles are positioned on one and the same side of the frame of the timepiece. However, this system does have two disadvantages. First, the storage mechanism is dependent on the chronograph mechanism in so far as the minutes flyback mobile is kinematically connected to the counting geartrain of the chronograph. Second, the storage capability of the device remains limited to the number of minutes displayed by the minutes counter of the chronograph. 
     It would therefore seem that there does not exist any mechanism for storing a time or a timing to within a second that has the ability to store times longer than one hour, or even longer than thirty minutes. 
     It is an object of the invention to provide a clock mechanism that overcomes the abovementioned disadvantages and is able to improve clock mechanisms known from the prior art. In particular, the invention proposes a clock mechanism and a clock movement that are simple and reliable allowing the display of a timing that is stored to within a second, or even to within a fraction of a second. 
     According to a first aspect of the invention, the mechanism for indicating and storing time information comprises:
         a member for displaying the hours, and/or   a member for displaying the minutes, and/or   a member for displaying the seconds,       

     and
         a member for displaying the stored hours, and/or   a member for displaying the stored minutes,       

     and
         a member for displaying the stored seconds.       

     The mechanism may comprise a first device for storing the seconds and at least a second device for storing the minutes and/or the hours. 
     The first storage device may comprise a first storage mobile provided with a first storage element intended to be in mesh with a geartrain devoted to said first mobile and/or the second storage device may comprise a second storage mobile provided with a second storage element intended to be in mesh with a geartrain devoted to said second mobile. 
     The first storage device may comprise a first immobilizing device, notably at least a first clamp or a first lever, and/or the second storage device may comprise a second immobilizing device, notably at least a second clamp or a second lever. 
     The mechanism may comprise a control element for operating the first storage device and the second storage device. 
     The control element may comprise:
         a first cam, notably a first column wheel, for operating the first member; and   a second cam, notably a second column wheel, for operating the second member.       

     The first cam or the first column wheel and the second cam or the second column wheel may be connected by an arbor, notably the first cam or the first column wheel and the second cam or the second column wheel may be fixed together by an arbor. 
     The mechanism may allow a 12-hour or even a 24-hour display. 
     The member for displaying stored minutes and/or the member for displaying stored hours may be configured in order to allow a storage capacity greater than 30 minutes, even greater than or equal to one hour, even greater than or equal to 6 hours, even greater than or equal to 12 hours, even equal to 24 hours. In such a way, a user action on the mechanism allows the storage of any current time information included in the capacity. 
     According to the first aspect of the invention, a clock movement comprises a mechanism defined hereinabove. The first storage device comprises a first storage element in mesh with an element of a geartrain of the clock movement or fixed to an element of a geartrain of the clock movement, and/or a second storage device comprises a second storage element in mesh with a motion-work. 
     The geartrain element may be a seconds wheel. 
     The first storage element may be a cam, notably a heart piece, and/or the second storage element may be a cam, notably a heart piece. 
     The mechanism may have a median plane parallel to the plane of the frame of the movement and dividing the movement into a first part and a second part of substantially equal bulk, and the first storage device may be in the first part and the second storage device may be in the second part. 
     Cams may also be positioned on either side of the median plane. 
     According to the first aspect of the invention, a timepiece, notably a watch, particularly a wristwatch, comprises a movement defined hereinabove or a mechanism defined hereinabove. 
     According to a second aspect of the invention which complements or takes the place of the first aspect of the invention, a clock movement comprises a mechanism for indicating and storing time information. The mechanism comprises a member for displaying the stored seconds and/or stored fractions of seconds and a first storage device for storing the seconds and/or fractions of seconds. The storage device comprises a first storage mobile equipped with a first storage element in direct mesh with an element of a geartrain of the clock movement or a first storage element fixed to an element of a geartrain of the clock movement. 
     Preferably, the first storage element is permanently in connection with an element of the geartrain of the clock movement. 
     The first geartrain element may be a seconds wheel. 
     The storage element may be a cam, notably a heart piece. 
     The first storage device may comprise a first immobilizing device, notably at least a first clamp or a first lever. 
     The mechanism may comprise:
         a member for displaying the hours and/or a member for displaying the minutes, and   a member for displaying the stored hours and/or a member for displaying the stored minutes, and   at least a second device for storing the minutes and/or the hours.       

     The second storage device may be provided with a second storage element in mesh with a motion-work. 
     The second storage element may comprise a heart piece. 
     The second storage device may comprise a second immobilizing device, notably at least a second clamp or a second lever. 
     The first and second immobilizing devices may be disposed in order to synchronize the stop:
         of the members (H′, M′) for displaying the stored hours and/or the stored minutes, and   of the member (S′) for displaying the stored seconds.       

     The movement may comprise cams disposed in order to synchronize the first and second immobilizing devices for the purpose of synchronizing the stop:
         of the members for displaying the stored hours and/or the stored minutes, and   of the member for displaying the stored seconds.       

     The movement may have a median plane parallel to the plane of the frame of the movement and dividing the movement into a first part and a second part of substantially equal bulk, and the first storage device may be in the first part and the second storage device may be in the second part. 
     The movement may comprise a control element for operating the first storage device and the second storage device. 
     The control element may comprise:
         a first cam, notably a first column wheel, for operating the first member; and   a second cam, notably a second column wheel, for operating the second member.       

     The first cam or the first column wheel and the second cam or the second column wheel may be connected by an arbor, notably the first cam or the first column wheel and the second cam or the second column wheel may be fixed together by an arbor. 
     The cams may be positioned on either side of the median plane. 
     The movement may allow a 12-hour or even a 24-hour display. 
     The member for displaying stored minutes and/or the member for displaying stored hours may be disposed in order to allow a storage capacity greater than 30 minutes, even greater than or equal to one hour, even greater than or equal to 6 hours, even greater than or equal to 12 hours, even equal to 24 hours. In such a way, a user action on the mechanism allows the storage of any current time information included in the capacity. 
     According to the second aspect of the invention, a timepiece, notably a watch, particularly a wristwatch, comprises a movement defined hereinabove. 
    
    
     
       The attached drawings depict, by way of example, one embodiment of a clock mechanism according to the invention. 
         FIG. 1  is a schematic view of one embodiment of a timepiece according to the invention in a first operating configuration. 
         FIG. 2  is a schematic view of the embodiment of the timepiece according to the invention in a second operating configuration. 
         FIG. 3  is a schematic view of the embodiment of the timepiece according to the invention in a third operating configuration. 
         FIG. 4  is a partial view of one embodiment of a clock movement according to the invention. 
         FIG. 5  is a view in partial section of one embodiment of a clock mechanism according to the invention. 
         FIG. 6  is a view of a detail of  FIG. 5  showing the embodiment of the clock mechanism according to the invention. 
         FIG. 7  is a partial plan view of a first display part of the embodiment of the clock mechanism according to the invention. 
         FIG. 8  is a view from above of a first storage part of the embodiment of the clock mechanism according to the invention, the mechanism being in a first configuration of measuring time with a hand for indicating the stored seconds. 
         FIG. 9  is a view from above of the first storage part of the embodiment of the clock mechanism according to the invention, the mechanism being in a second configuration of storing time with the hand for indicating the stored seconds. 
         FIG. 10  is a partial plan view of a second display part of the embodiment of the clock mechanism according to the invention. 
         FIG. 11  is a view in section on XI-XI of  FIG. 10  of the embodiment of the clock mechanism according to the invention. 
         FIG. 12  is a view in section on XII-XII of  FIG. 10  of the embodiment of the clock mechanism according to the invention. 
         FIG. 13  is a plan view of a second storage part of the embodiment of the clock mechanism according to the invention, the mechanism being in a first configuration of measuring time with hands for indicating the stored hours and minutes. 
         FIG. 14  is a view in cross section of a mechanical connection between the first and second storage parts of the embodiment of the clock mechanism according to the invention. 
         FIG. 15  is an overall plan view of the embodiment of the clock mechanism according to the invention, the mechanism being in a first configuration of measuring time with hands for indicating the stored hours, minutes and seconds. 
         FIG. 16  is a plan view of the second storage part of the embodiment of the clock mechanism according to the invention, the mechanism being in a first configuration of measuring time with hands for indicating the stored hours and minutes. 
         FIG. 17  is an overall plan view of the embodiment of the clock mechanism according to the invention, the mechanism being in a second configuration of storing time with hands for indicating the stored hours and minutes. 
     
    
    
     One embodiment of a timepiece  1  according to the invention is described hereinafter with reference to  FIGS. 1 to 3 . In this embodiment of timepiece, storage members H′, M′, S′, notably additional hands, that can indicate or display stored hours, stored minutes and stored seconds are added to conventional indicating or display members H, M, S, notably conventional hands H, M, S. The timepiece is thus able to store a timing to within a second while at the same time indicating the current time. It is in particular able to display a timing to within a second in a time range extending over several hours, notably 12 hours or even 24 hours. 
     The timepiece is, for example, a watch, notably a wristwatch. The timepiece comprises a clock movement  2 . The clock movement  2  for its part comprises a clock mechanism  3  which is described in detail later on. This clock mechanism  3  comprises for example display members H, M, S, H′, M′, S′ able to indicate or display the current hours, minutes, seconds or even fractions of a second and to indicate or display the stored hours, minutes, seconds or even fractions of a second. The mechanism may for example comprise a member for indicating the current fractions of a second and/or a member for indicating the stored fractions of a second. These indicating members may for example be operated by jumping seconds mechanisms. Thereafter, to simplify, only members that display hours, minutes and seconds will be considered, rather than members that display fractions of seconds. 
     In normal operation, as indicated in  FIG. 1 , the members H, M, S that display the current hours, minutes and seconds and the members H′, M′, S′ that display the stored hours, minutes and seconds indicate the current time. 
     A first action on a control member  4 , such as a pressing of a button, causes the members H′, M′, S′ that display the stored hours, minutes and seconds to immobilize without having any effect on the members H, M, S that display the current hours, minutes and seconds which continue on their way, as indicated in  FIG. 2 . Thus, in this configuration, the members H′, M′, S′ indicate stored time information. 
     A second action on the control member  4 , for example a pressing of the button, causes the members H′, M′, S′ that display the stored hours, minutes and seconds to reposition or resynchronize with the members H, M, S that display the current hours, minutes and seconds, as indicated in  FIG. 3 . The members H′, M′, S′ that display the stored hours, minutes and seconds and the members H, M, S that display the current hours, minutes and seconds are thus synchronized again. The members H′, M′, S′ that display the stored hours, minutes and seconds and the members H, M, S that display the current hours, minutes and seconds therefore display the same information. 
     One embodiment of the clock mechanism  3  for indicating and storing time information is now described in greater detail with reference to  FIGS. 4 to 17 . 
     According to a first aspect of the invention, the mechanism  3  for indicating and storing time information comprises:
         a member H for displaying the hours and/or a member M for displaying the minutes and/or a member S for displaying the seconds or even a member for displaying the fractions of a second, and   a member H′ for displaying the stored hours and/or a member M′ for displaying the stored minutes and/or a member S′ for displaying the stored seconds or even a member for displaying the stored fractions of a second.       

     Advantageously, according to this first aspect of the invention, the mechanism comprises a first device MEM 1  for storing the seconds or even for storing the fractions of a second and at least a second device MEM 2  for storing the minutes and/or the hours. 
     According to a second aspect of the invention, the clock movement  2  comprises the mechanism  3  for indicating and storing time information, this mechanism including:
         a member S′ for displaying the stored seconds and/or the stored fractions of a second,   a first device MEM 1  for storing the seconds and/or fractions of a second.       

     The first storage device MEM 1  further comprises a first storage mobile M 1  provided with a first storage element MC 1  in direct mesh with an element  12  of a geartrain  11 ,  12 ,  13 ,  14 ,  15  of the clock movement or a first storage element fixed to an element of a geartrain of the clock movement. 
     Preferably, the first storage element is permanently in connection with the element  12  of the geartrain of the clock movement. 
     The mechanism may also comprise a member S for displaying the seconds and/or fractions of a second. 
     The first storage device MEM 1  provides an interface between the geartrain and the member S′ for displaying the stored seconds, notably between a seconds wheel  12  and the member S′ for displaying the stored seconds. As indicated in  FIG. 4 , the geartrain may comprise a barrel  15 , for example a center wheel  14 , for example a third wheel  13 , a seconds wheel  12  and an escapement wheel  11 . The geartrain may, from the barrel to the oscillator, exhibit an entirely conventional structure. Alternatively, the geartrain may comprise several barrels and more than three mobiles so as to provide the kinematic connection between the barrel or barrels and the escapement wheel. 
     The first storage device MEM 1  is described hereinafter with reference to  FIGS. 5 to 9 . The first storage device comprises:
         a first storage mobile M 1  provided with a first storage element MC 1  intended to be in mesh with a geartrain  11 ,  12 ,  13 ,  14 ,  15  devoted to said mobile.       

     More specifically, the first storage device comprises, in addition to the first mobile M 1 :
         a pinion  1   a  secured to the seconds wheel  12  (and therefore secured to the seconds display member S) and in mesh with, notably meshing with, the first storage mobile M 1 , and   a pinion  1   a ′ secured to the stored seconds display member S′ and in mesh with, notably meshing with, the first storage mobile M 1 .       

     More specifically, the storage mobile M 1  comprises a pinion M 1   a  on which the first storage element MC 1 , which for example comprises a cam MC 10 , notably a heart piece, is mounted or fixed. This pinion M 1   a  may be in continuous mesh with the pinion  1   a  of the seconds mobile  12 . The storage mobile M 1  comprises a wheel M 1   a ′ which is in mesh with the wheel  1   a ′ of the mobile  12 ′ on which the member S′ that indicates the stored seconds is mounted or of which said member forms part, notably on which the storage hand S′ is driven in. This wheel M 1   a ′ is also secured to a plate MP 1  on which an elastic return lever ML 1  pivots. The wheel M 1   a ′ and the plate MP 1  are advantageously fixed to one another. The wheel  1   a ′ and the stored seconds display member S′ are connected by an arbor that passes right through the frame B of the movement  2  of the timepiece  1 , as indicated in  FIG. 5 . 
     In normal or usual operation, namely when the seconds display member S and stored seconds display member S′ are synchronized as in  FIGS. 1 and 7 , the head of the return lever ML 1  presses against shoulders or hollows or the flat formed on the cam profile MC 10 . In this configuration, a control cam C 1 , notably a column wheel, is positioned in such a way that an immobilizing device B 1  for immobilizing the plate MP 1  is deactivated. In this configuration, the immobilizing device has no purchase on the plate MP 1  and therefore on the storage mobile M 1 . Thus, the action of the return lever ML 1  on the cam MC 10  drives the plate MP 1  and the cam MC 10  in synchronous rotation thus causing the seconds member and the stored seconds member to display identically. The mechanism  3  comprises the control cam C 1  for operating the first storage device. 
     The immobilizing device B 1  comprises at least one lever or clamp, preferably two levers or clamps P 1  and P 10  and a spring R 1 . The elements are arranged in such a way that they make the spring return the clamps away from the plate MP 1  and therefore not immobilize the plate MP 1  (as indicated in  FIG. 8 ). The columns of the column wheel and a follower LP 1  are designed to bring about contact of the clamps P 1  and P 10  with the plate MP 1  when the follower LP 1  is pressing against a column of the wheel (as indicated in  FIG. 9 ). The display and storage mechanism comprises the immobilizing device B 1 . 
     Advantageously, the control cam C 1  takes the form of a column wheel which is angularly indexed by a spring R. This wheel is, for example, provided with a binary profile C 1   a  made up of columns and hollows. In the configuration of  FIG. 8 , the follower LP 1  of the clamp P 1  lies facing one of the hollows of the profile C 1   a  so that the spring R 1  positions the clamps P 1  and P 10  out of range of the plate MP 1  on which the elastic return lever ML 1  designed to collaborate with the cam MC 10  pivots. 
     The control cam C 1  may also be provided with a ratchet toothset C 1   b  which is designed to be actuated and driven by one angular step by a lever L under the effect of a control member O. Pressure on the latter causes the control cam C 1  to rotate so that one of the columns of the profile C 1   a  drives the clamps P 1 , P 10  against the action of the spring R 1  so that they can immobilize the rotation of the plate MP 1  of the mobile M 1 . Thus, in this configuration (indicated in  FIG. 9 ), the lever ML 1  is immobilized in a well defined angular position of the plate MP 1 , while the cam MC 10  continues to turn. This situation results in the stored seconds display member S′ being immobilized while the seconds display member S continues on its way. A further action on the control member O positions the control cam C 1  in a configuration analogous to that of  FIG. 9 ; the head of the lever ML 1 , under the effect of its elastic return element, then repositions itself against the shoulders, or hollows, or flat, of the cam MC 10 . Thus, the seconds display member S and the stored seconds display member S′ are synchronized again. The mechanism  3  comprises the control member O. This control member allows action on the control cams C 1 , C 2 . 
     The second storage device MEM 2  provides an interface between the members H, M that display the hours and minutes and the members H′ and M′ that display the stored hours and minutes. 
     The second storage device MEM 2  is described hereinafter with reference to  FIGS. 10 to 17 . The second storage device comprises:
         a second storage mobile M 2  provided with a second storage element MC 2  intended to be in mesh with a geartrain  16  dedicated to said mobile.       

     More specifically, the second storage device comprises, in addition to the second mobile M 2 , an auxiliary motion-work connecting the member H′ for displaying the stored hours and the member M′ for displaying the stored minutes, notably in mesh, with the second storage mobile M 2 . 
     More specifically, the second storage mobile M 2  comprises a wheel M 2   a  on which the second storage element comprising for example a cam MC 20 , notably a heart piece, is mounted or fixed. This wheel M 2   a  may be in continuous mesh with an hours wheel  162  which bears the member H that displays the hours. The storage mobile M 2  comprises a wheel M 2   a ′ which is in mesh with a wheel  162   a ′ secured to the wheel  162 ′ which bears the stored hours display member H′. This wheel M 2   a ′ is also secured to a plate MP 2  on which an elastic return lever ML 2  pivots. The wheel M 2   a ′ and the plate MP 2  are advantageously fixed to one another. 
     The second storage device is similar to the first storage device. Thus, the members H and M that display the hours and minutes are connected to the members H′ and M′ that display the stored hours and minutes via the intermediary of the second storage mobile M 2 . 
     Advantageously, the second storage mobile M 2  is positioned on the opposite side of the movement frame from the side on which the first storage mobile M 1  is situated, as indicated in  FIGS. 5, 11, 12 . 
     The structure of the second storage mobile M 2  is analogous to that of the mobile M 1 . The second mobile M 2  comprises a wheel M 2   a  on which a cam MC 20 , notably a heart piece, is mounted. This wheel M 2   a  is in mesh, notably in continuous mesh, with an hours wheel  162  on which the hours display member H is mounted, notably on which an hours hand H is driven in. The second mobile M 2  also comprises a wheel M 2   a ′ which drives the stored hours wheel  162 ′ via a wheel platform  162   a ′ which is mounted thereon. The kinematic connection between the stored hours wheel  162 ′, on which the stored hours display member is mounted, notably on which a hand H′ is driven in, and the cannon pinion  164 ′ secured to the stored minutes display member M′ is for its part achieved through the intermediary of the auxiliary motion-work  16 ′ the structure of which is identical to that of the motion-work  16 . 
     An immobilizing device B 2  is devoted to the storage mobile M 2 . The immobilizing device B 2  is similar to the immobilizing device B 1 . Just like the immobilizing device B 1 , the immobilizing device B 2  comprises at least one lever or clamp, preferably two levers or clamps P 2  and P 20  and a spring R 2 . This immobilizing device is also operated by a control cam C 2 , for example a column wheel. The display and storage mechanism comprises the immobilizing device B 2 . The mechanism  3  comprises the control cam C 2  that operates the second storage device. 
     In order to synchronize the control of the stored hours and minutes display members H′ and M′ and the stored seconds display member S′, the control cam C 2  has the specific feature of rotating as one with the control cam C 1  through the agency of an arbor A which passes right through the frame B of the movement  2  of the timepiece  1 , as indicated in  FIG. 14 . For preference, a geometric feature GA of the arbor A is designed to collaborate with a complementary or substantially complementary geometric feature GC 2  of the control cam C 2  to make the angular indexing of the control cam C 2  relative to the control cam C 1  easier. Thus, the first control cam C 1  and the second control cam C 2  are connected by an arbor A. 
     In the configuration of  FIG. 13 , the control cam C 2  is positioned in such a way that the immobilizing device B 2  has no purchase on the storage mobile M 2 . More particularly, one end of an arm LP 2  of the clamp P 2  lies facing one of the hollows of the profile C 2   a  so that the spring R 2  positions the clamps P 2  and P 20  out of range of the plate MP 2 . Thus, the head of the return lever ML 2  continuously bears against the shoulders or the hollow or the flat formed on the profile of the cam MC 20 , which means that the set of members H′ and M′ for displaying the stored hours and minutes and the set of members H and M for displaying the hours and minutes are synchronized. 
     The configuration illustrated in  FIGS. 13 and 15  coincides with that illustrated in  FIG. 8 . In other words, when the clamp P 2  is lying facing one of the hollows of the profile C 2   a  of the control cam C 2 , the clamp P 1  is also situated facing one of the hollows of the profile C 1   a  of the control cam C 1 . The immobilizing devices B 1  and B 2  are thus synchronized, which means that the immobilizing of the members that display the stored hours, minutes and seconds is synchronized. 
     Just as with the control cam C 1 , action on the control member O causes the control cam C 2  to rotate so that one of the columns of the profile C 2   a  drives the clamps P 2  and P 20  against the action of the spring R 2  so that they can immobilize the rotation of the plate MP 2  of the mobile M 2 . Thus, in the configuration of  FIGS. 16 and 17 , the lever ML 2  is immobilized in a well defined angular position of the plate MP 2 , while the cam MC 20  continues to turn. This situation results in the members H′ and M′ that display the stored hours and minutes becoming immobilized while the members H and M that display the hours and minutes continue on their way. 
     This configuration illustrated by  FIGS. 16 and 17  coincides with that illustrated by  FIG. 9 . In other words, when the clamp P 2  is situated facing one of the columns of the profile C 2   a  of the control cam C 2 , the clamp P 1  is likewise situated facing one of the columns of the profile C 1   a  of the cam C 1 . The immobilizing devices B 1  and B 2  are thus synchronized, which means that the stopping of the members H′, M′ and S′ that display the stored hours, minutes and seconds is synchronized. 
     Of course, the profiles C 1   a , C 2   a  of the respective cams C 1 , C 2  can be configured differently if the immobilizing devices B 1 , B 2  have distinct modes of operation. In all events, the cams C 1  and C 2  are defined in such a way as to synchronize the immobilizing devices B 1 , B 2  so as to synchronize the stopping of the members H′, M′ and S′ that display the stored hours, minutes and seconds. 
     By virtue of the invention, the first storage mobile M 1  is in direct mesh with the seconds mobile of the geartrain. This storage mobile is controlled by the first immobilizing device B 1 . 
     The second storage mobile M 2  allows for the storage of the hours and/or the minutes. It is in direct mesh with the motion-work of the basic movement. This storage mobile is controlled by at least one second immobilizing device B 2 . 
     The control cams C 1 , C 2  are designed to operate each of the immobilizing devices B 1 , B 2 . They are actuated through the agency of the control member O which transmits the actions that the user applies to the display and storage mechanism  3 , to the movement  2  or to the timepiece  1 . 
     The control cams C 1 , C 2  are able to turn. They are configured to be positioned on either side of the frame B of the timepiece  1  so as to operate the at least two immobilizing devices B 1 , B 2 . 
     The seconds mobile  12  is, for example, positioned on a first side of the frame B of the movement, while the motion-work is conventionally positioned on the other side of the frame of the movement as indicated in  FIG. 11 . 
     As indicated in  FIG. 11 , the mechanism  3  has a median plane P 3  parallel to the plane PB of the frame B of the movement. The median plane P 3  is substantially perpendicular to the arbor A and to the mobile  12 ′ and divides the space into two parts of the same volume in which parts the entire mechanism  3  is contained. The plane PB of the frame divides the plate of the movement into a first part and a second part of substantially equal bulk. The first storage device MEM 1 , particularly the storage mobile M 1  and/or the first storage element MC 1  and/or the plate MP 1 , is in the first part. The second storage device MEM 2 , particularly the storage mobile M 2  and/or the first storage element MC 2  and/or the plate MP 2 , is in the second part. 
     The display and storage mechanism comprises members for displaying the time and for storing a moment preferably situated within a 12-hour or even 24-hour range. For preference, the members for displaying the time and the storage members move at the same rate through the same time range. Alternatively, the hands that display the time and those used for storage indicate information on two separate time ranges. 
     Thus, according to the invention, for each of the time or timing, hours and/or minutes and/or seconds information items, the mechanism has the specific feature of selectively indicating the stored information or the current information using one and the same display member under the action of a single control member. Such a mechanism may for example prove useful for marking the time at the start of an event and indicating to within a second the time at which it finishes. 
     A positioning of display members in one or more random positions or in one or more positions defined once and for all, i.e. in one or more positions that are not user definable or not user modifiable, as it can be found in mechanisms for displaying time information upon request, cannot be considered as a storage within the meaning of the invention. 
     Throughout this document, “direct mesh” is intended to mean any kinematic connection with no clutch device. Preferably, the connection is permanent. It is possible if appropriate for one or more intermediate elements to be arranged between the seconds wheel and the storage mobile.