Water-tight fitting of a glass in a watch case

Details Water-tight fitting of a glass in a watch case Water-tight fitting of a glass in a watch case

1976-04-20

1977-11-29

Witkowski, Stanley J.

58 91, 58 94, 58100, G04B 3708, G04B 3900

Patent

active

040599574

ABSTRACT:
A watch case includes a middle-bezel having a non-circular upper opening receiving a glass of corresponding non-circular shape. The glass has an outwardly-directed peripheral flange able to pass with a slight play through the upper opening in the middle-bezel, and the middle-bezel has an inwardly-directed collar defining its upper opening. A packing seal is disposed with a part under the collar and a part resting on the flange. A screw-fitted circular back applies pressure to the glass to compress the seal between the collar and flange and thereby hold the glass in the upper opening.

REFERENCES:
patent: 2830434 (1958-04-01), Trautz
patent: 2989838 (1961-06-01), Guggi et al.
patent: 3399525 (1968-09-01), Caprara
patent: 3855786 (1974-12-01), Yamamoto
patent: 3950937 (1976-04-01), Fujimori

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