Calendar mechanism for chronograph watch

Details Calendar mechanism for chronograph watch Calendar mechanism for chronograph watch

1992-02-21

1994-01-25

Roskoski, Bernard

Horology: time measuring systems or devices

With calendar indicator

368 35, 368 37, G04B 1924

Patent

active

052821790

ABSTRACT:
This chronograph-watch includes, superposed over one another and in the following order, a motor module (19), a chronograph module (27) and a dial (12). The motor module comprises a first date ring (17). The chronograph module includes a second date ring (28) located immediately under the dial and bearing indications (14) concerning the date which appear through an opening (13). The second ring (28) is controlled by the first ring (17), through a drive chain (32, 33, 34, 36) assembled in the chronograph module.

REFERENCES:
patent: 3704583 (1972-12-01), Dome
patent: 3939645 (1976-02-01), Charbonney
patent: 4060976 (1977-12-01), Jakob
patent: 4234943 (1980-11-01), Teramoto et al.
patent: 4257113 (1981-03-01), Meister et al.
patent: 4443112 (1984-04-01), Stotz et al.
patent: 4611925 (1986-09-01), Vuilleumier et al.
patent: 4671670 (1987-06-01), Kroner
patent: 4676659 (1987-06-01), Vuilleumier
patent: 4837755 (1989-06-01), Besson
Illustrated Professional Dictionary of Horology. G. A. Berner, Jul., 1961.

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