Calendar display device and calendar watch

Abstract

The present invention relates to a calendar display device, especially relates to a calendar display device for a mechanical watch piece, including: a first disk (1), the disk of days, carrying multiple series of inscriptions symbolizing the seven days of the week; a second disk (2), the disk of dates, carrying inscriptions symbolizing the date of the month; a third disk (3), the disk of months, carrying 12 inscriptions symbolizing the months of the year. One (1, 2) of the disk of days (1) and the disk of dates (2) acts as a dial by being fixed, whereas the other (2, 1) acts as a rotary disk by being arranged concentrically and rotatably in relation to the dial. The dial includes an aperture (2.1) making it possible to see the inscription of the current month on the disk of months (3) which is mounted rotatably and is driven, either directly or indirectly, by a watch movement of said watch piece; a hand (4) placed concentrically and rotatably in relation to said dial so as to indicate simultaneously a date and a day of the week; a direct kinematic link (7, 8) between the disk of months (3) and the rotary disk (1, 2) to realize automatic indexing between the inscriptions on the rotary disk (1, 2) and the inscriptions on the rotary disk (2, 1) according to the displayed month; and a correction mechanism (9, 10) comprising equipment configured to advance and reverse the disk of months (3) so as to allow modification of the month displayed on the dial (1, 2) in a bidirectional manner. The present invention also relates to a watch piece comprising the calendar display device.

Description

technical field [0001] The present invention relates to a calendar display device, in particular to a calendar display device for a mechanical watch including a watch movement. series of inscriptions representing the seven days of the week; the second disc (the date disc) bearing the inscriptions representing the dates of the month; the third disc (the month disc) bearing the 12 months representing the year one inscription; one of the day dial and the date dial acts as a dial by being fixed, while the other acts as a rotating disk by being arranged concentrically and rotatably with respect to the dial, which includes an aperture that makes it possible to see the Inscription of the current month on a month disc rotatably mounted and driven by the watch movement of said watch piece, while hands are concentrically and rotatably arranged relative to said dial to simultaneously indicate the date and the days of the week. The invention also relates to a watch comprising such a cale...

AI Technical Summary

Problems solved by technology

However, these devices have the following significant disadvantage due to the fact that the length of the month is usually not a multiple of 7 of the length of the week: they require manual intervention by the user at the beginning of each month to readjust the day scale with the inscription on the date scale inscription, otherwise the calendar display will no longer be correct

[0005] Document EP 1351105, owned by the same owner as document EP 1351104, describes the same device from another point of view and is concerned in particular with the problem that a calendar display device of the type mentioned in the Advantages of viewing in general, but not viewing the next month's calendar until the evening of the last day of the current month

[0007] This simple explanation illustrates that the solutions of documents EP1351104 and EP1351105 are complex in their design, difficult to implement, expensive to manufacture and even partly remo...

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