Watch hand adjustment gear

Details Watch hand adjustment gear Watch hand adjustment gear

1986-06-25

1990-11-13

Roskuski, Bernard

Horology: time measuring systems or devices

Cases

With crown or stem details

368319, 368190, 368185, 368196, G04B 2700

Patent

active

049707094

ABSTRACT:
A hand adjustment structure for a wristwatch which has a spur gear structure disposed intermediate the minute and the hour gears of the watch includes a crown gear structure on one side of the spur gear disc for engagement with the pinion of a time setting shaft by which the spur gear structure can be rotated and together therewith the watch's minute and hour hands radial projections are stamped axially out of the spur gear disc in a circular array so as to form the crown gear structure integrally with the spur gear disc.

REFERENCES:
patent: 1848562 (1932-03-01), Greenleaf
patent: 4262354 (1981-04-01), Sakamoto
patent: 4295215 (1981-10-01), Kitai et al.

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