Horological timepiece, in particular wrist watch

Details Horological timepiece, in particular wrist watch Horological timepiece, in particular wrist watch

1998-04-03

1999-08-24

Miska, Vit

Horology: time measuring systems or devices

With calendar indicator

368 80, G04B 1904, G04B 1924

Patent

active

059432993

ABSTRACT:
A timepiece, particularly a wristwatch, comprising a retrograde date display presenting a graduation from 1 to 31 (2) on the dial (1) cooperating with a hand (3) driven by the mechanism which comprises a sleeve (4) comprising this hand and fast with a pinion (5) meshing with two racks (9) pivoted on a plate (6) of the movement acting in opposite direction on the pinion (5), one of said rack being submitted to the action of a return spring, whereas the free end of the other rack is maintained, by the force of said return spring, permanently against a snail cam carried by a date crown (11) pivoted on said plate (6) and driven in a known manner of one step each day by the watch movement.

REFERENCES:
patent: 2292458 (1942-08-01), Maser
patent: 3696609 (1972-10-01), Dubois

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