Waterproofed watchcase construction

Details Waterproofed watchcase construction Waterproofed watchcase construction

1979-06-08

1980-09-16

Weldon, Ulysses

Horology: time measuring systems or devices

Cases

With protection means

368294, 368281, 368276, G04B 3708

Patent

active

042222281

ABSTRACT:
Waterproofing of a watchcase is achieved by a sealing ring disposed between the periphery of the watch glass and a bezel portion of the case and confined between the glass holder ring on which the watch glass rests and an inturned lip portion of the bezel which retains the watch glass. By being disposed between the periphery of the watch glass and the bezel, the sealing ring is concealed from view by the inturned lip portion of the bezel and a more attractive watch is thereby achieved. A second sealing ring is provided between the bezel portion of the case and the case back to provide a seal therebetween.

REFERENCES:
patent: 2716328 (1955-08-01), Dinstman
patent: 3849981 (1974-11-01), Tarusawa et al.
patent: 3858388 (1975-01-01), Fu jimori et al.
patent: 3950937 (1976-04-01), Fujimori
patent: 4117658 (1978-10-01), Miyasaki et al.

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