| 摘要 |
<p>The calendar mechanism (1) comprises a shift-lever structure provided with a cam follower portion for a small month detection and is fluctuatably supported by a support substrate of a timepiece (2). A date advance claw is provided for engaging with a gear of a date wheel and carrying out day sending and is supported by a shift-lever structure so that the rotation center is displaced according to the fluctuation of a shift-lever structure. A month cam is provided for engaging in order to change the rocking displacement position of a shift-lever structure.</p> |
