| 摘要 |
<p>The mechanism has a date disc (14) fitted with a first interior disc (18) having 31 teeth, on which are placed 31 numerals, for the date. The disc is driven by a moving part with a finger that drives the disc one tooth step a day. The disc has a second interior disc (22) with teeth designed to drive a part of the watch mechanism at the end of each month, using a gear train, and a month cam having five teeth, corresponding to the 31 day months . Each of the teeth of the second interior disc is arranged so that they are positioned, at the end of a thirtyone day month, in the path of the tip (54) of a swinging lever (56) mechanism. The lever mechanism is linked to a mobile correction drive (28) fitted with a correction finger (30) designed to co-operate with the first or second teeth on the inner discs (18,22), at the month end so as to drive the date disc a supplementary step when the lever mechanism pivots following the passage of its tip (54) onto the teeth of the month cam.</p> |
