| 摘要 |
<p>The watch, incorporating a spring-loaded balance arm (2) that is released once a day by a 24-hour wheel (10) to advance the date, has a lock (30, 40) for the calendar mechanism that prevents the transmission of movement from the 24-hour wheel to the date actuator when the watch time is being adjusted by stopping the balance arm from being moved by its spring. When it is not locked, the balance arm is released every 24 hours by a spiral cam (11) attached to the 24-hour wheel.</p> |
