Quartz crystal watch

Details Quartz crystal watch Quartz crystal watch

1980-11-06

1983-07-12

Roskoski, Bernard

Horology: time measuring systems or devices

Chronological

With significant casing or mounting support structure

368157, 368 76, G04C 2302, G04B 3700

Patent

active

043927483

ABSTRACT:
A quartz crystal analog watch has a circuit block and mechanical elements on one side of a frame plate and the battery power source resting on an insulating plate on the other side of the frame plate. The diameter of the movement approximates the battery diameter.

REFERENCES:
patent: 2974474 (1961-03-01), Wegner
patent: 3691753 (1972-09-01), Kurita
patent: 4086753 (1978-05-01), Tsuchiya et al.
patent: 4087957 (1978-05-01), Miyasaka et al.
patent: 4177631 (1979-12-01), Yamada et al.
patent: 4228389 (1980-10-01), Vennard

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