Patent ID: 6616328
Filing Date: 2003-09-09
Classification: G04G

Abstract:
A high-accuracy timepiece having accuracy adjustment means for adjusting the timekeeping accuracy of the timepiece by inputting and storing in a writable data storage means accuracy adjustment data used for adjusting the timekeeping accuracy of the timepiece when the timepiece is in a fully assembled state, the accuracy adjustment means having accuracy adjustment data input means comprising: a manually operable crown movable between a first state in which accuracy adjustment data is to be input and a second state in which accuracy adjustment data is not to be input; crown state detection means for detecting the state of the crown and outputting a crown state detection signal depending on whether the crown is in the first state or the second state; and data input control means for inputting the crown state detection signal from the crown state detection means, determining whether a predetermined series of crown movements have been performed and, when the predetermined series of crown movements have been performed, determining that accuracy adjustment data is to be input, and causing the data storage means to store the accuracy adjustment data.