Timepiece movement of reduced height with a large power reserve
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United States of America Patent
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Nov 18, 2014
Issued Date -
N/A
app pub date -
Aug 15, 2012
filing date -
Aug 17, 2011
priority date (Note) -
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Abstract
Timepiece gear train device (1) of reduced height with a large power reserve, driving display means (4) including a cannon-pinion (5) and an hour wheel (6), which are driven about a main pivot axis (AP), secant to a barrel (3), by a motion work (7) and including a driving wheel (8), which pivots about a secondary pivot axis (AS) external to said barrel (3) and is friction coupled to said motion work (7) on a friction surface (9) coaxial to said secondary pivot axis (AS).
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