Water-resisting structure for a watch

Details Water-resisting structure for a watch Water-resisting structure for a watch

1983-08-22

1984-10-30

Miska, Vit W.

Horology: time measuring systems or devices

Cases

With protection means

G04B 3700

Patent

active

044797249

ABSTRACT:
A water-resistant device for a watchcase of a diver's watch having a case body, a back and a glass. The device comprises an O-ring for sealing the watchcase, an annular leaf spring having an elasticity in the axial direction of the watchcase, and a bezel for the glass for compressing the leaf spring so as to urge the glass to the O-ring for maintaining watertightness of the watchcase. The O-ring and leaf spring are such that when the glass is moved by the difference between the pressure in the watchcase and atmospheric pressure, gases in the watchcase leak out through a gap formed by the movement of the glass.

REFERENCES:
patent: 3811401 (1974-05-01), Diquerez
patent: 4080781 (1978-03-01), Klingenberg
patent: 4244044 (1981-01-01), Olsson

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