Watchcase

Details Watchcase Watchcase

1980-02-11

1982-04-27

Miska, Vit W.

Horology: time measuring systems or devices

Cases

With bezel or crystal details

G04B 3700

Patent

active

043274293

ABSTRACT:
In a watchcase body comprising a caseband and a glass, provision is made for fitting a wrist watch movement by means of metal rings. The caseband is of hard material, e.g., synthetic stone or sintered alumina, while the glass is of transparent mineral material, sapphire or mineral glass. The caseband and glass are permanently and rigidly joined without any intervening metal parts. The underside of the glass is metallized along the periphery, then cemented to the annular top surface of the caseband. After cementing, the watchcase body is finished by machining one or more continuous facets on the outer rim of the glass and the outer surface of the caseband.

REFERENCES:
patent: D242436 (1975-07-01), Nilson
patent: 3690062 (1972-09-01), Kasai et al.
patent: 3977176 (1976-08-01), Murakami et al.
patent: 4003196 (1977-01-01), O'Conner

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