Quick date setting by push-button in a watch

Details Quick date setting by push-button in a watch Quick date setting by push-button in a watch

1981-11-20

1984-02-14

Isen, Forester W.

Horology: time measuring systems or devices

With calendar indicator

Setting or resetting

368221, G04B 2700

Patent

active

044320817

ABSTRACT:
An improvement in a date indexing device for an analog watch using manual indexing of a date ring with a push button. The indexing member indexes the date ring with a pawl guided onto the toothed rim of the date while one of the driving gear elements for the date ring is disengaged by moving an elastically yieldable support for the gear element.

REFERENCES:
patent: 3892067 (1975-07-01), Meylan-Piguet
patent: 4027468 (1977-06-01), Felty et al.
patent: 4291397 (1981-09-01), Wuthrich et al.

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