| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a calendar display device capable of making automatic the indexing between scales of days and dates at the start of each month. <P>SOLUTION: A calendar display device for a mechanical watch piece having a watch movement comprises: a first disk carrying multiple series of inscriptions symbolizing seven days of a week; a second disk carrying inscriptions symbolizing a date of a month; a third disk carrying inscriptions symbolizing months of a year. One of the disk of days and the disk of dates acts as a dial by being fixed, whereas the other of the disk of days and the disk of dates acts as a rotary disk, and the dial comprises an aperture 2.1 making it possible to see the inscription of a current month. A hand 4 is placed so as to indicate simultaneously a date and a day of the week. The device comprises direct kinematic links 7, 8 so as to make automatic the indexing between the inscriptions on the rotary disk and the inscriptions on the dial and further comprises correction mechanisms 9, 10 configured to advance and reverse the disk of months so as to allow modification of the month displayed on the dial in a bidirectional manner. This invention relates to a watch piece having such calendar display device. <P>COPYRIGHT: (C)2012,JPO&INPIT |
