Watch having a fluid-tight rotary crystal or crystal-bezel unit

Details Watch having a fluid-tight rotary crystal or crystal-bezel unit Watch having a fluid-tight rotary crystal or crystal-bezel unit

1994-09-30

1996-05-28

Roskoski, Bernard

Horology: time measuring systems or devices

Cases

With bezel or crystal details

368291, G04B 3700

Patent

active

055218890

ABSTRACT:
The crystal-bezel unit (1, 20) allows dismantling of the timepiece from above and can be moved rotatingly relative to a caseband (4), where a joining gasket (10) including at least one active portion is disposed between the crystal-bezel unit and the caseband. An optional fixing means (20) holds the fixed and rotating units together.

REFERENCES:
patent: 3706198 (1972-12-01), Fukushima
patent: 3744238 (1973-07-01), Hirabayashi et al.
patent: 3828549 (1974-08-01), Nozawa
patent: 3934402 (1976-01-01), Fujimori
patent: 4067186 (1978-01-01), Grohoski et al.
patent: 4110970 (1978-09-01), Funazawa et al.
patent: 4157646 (1979-06-01), Wuthrich
patent: 4234948 (1980-11-01), Maekawa et al.
patent: 4363555 (1982-12-01), Finger
patent: 4397566 (1983-08-01), Lederrey
patent: 4479724 (1984-10-01), Matsumoto et al.
patent: 5154977 (1992-10-01), Saito

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