Large date display device

Horology: time measuring systems or devices – With calendar indicator

Reexamination Certificate

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Details

C368S037000

Reexamination Certificate

active

07133328

ABSTRACT:
Date system for a horological movement comprising a tens disc (2) connected to a star wheel (4) driven by a first drive device (12), and a units disc (1) driven by a second drive device (13). The said drive devices (12, 13) are connected to a rocker (9) which works with cams (10, 11) connected to a driving runner (5), which effects one rotation per month. These cams (10, 11) are provided with a tooth (20) and a notch (21) which keep the first drive device (12) in the disengaged position until the tooth (20) and the notch (21) actuate the said rocker (9) in order to engage and disengage the respective drive devices (12, 13) in such a way as to move the display from the 31stto the 1stof the month without an error of one day between the date indicated and the actual date.

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Search Report for European Patent Application No. 04405399 mailed Jan. 25, 2005.

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