G - Physics – 04 – B
Patent
G - Physics
04
B
58/10
G04B 19/24 (2006.01) G04B 19/25 (2006.01)
Patent
CA 1190754
PLANETARY GEAR FOR DATE MECHANISM IN A WRISTWATCH ABSTRACT A wristwatch with a stepping motor driving the hands through a normal gear train also includes a supplementary gear train driving a circumferential date ring showing the calendar date. The gear train includes a planetary gear assembly, which may also be selectively operated by an exterior manually rotatable button to change the date without interfering with the normal driving of the date ring from the stepping motor. Preferably the manually rotatable button is operable from the back of the watch using a ball-point pen or the like.
436701
Sedlak Adolf
Skwarek Jean-Pierre
Stotz Gerhard
Gowling Lafleur Henderson Llp
Timex Corporation
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