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Cyma Tavannes 921
(Cyma, Tavannes)
Jewels: 7
Power Reserve: 34 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1911-1912
Diameter: 43.15 mm
Height: 5.15 mm
Hands: 1.65 x 0.92 / 0.22 mm
The Cyma Tavannes 921 watch movement, produced between 1911-1912 in 7000 units, features a hunter calibre with a model 2 configuration. Its base plate comprises of two parts, one likely adapted to tools for 12 size. The movement is equipped with a bimetallic screw balance and a Breguet hairspring. It incorporates a negative stem mechanism with an adjustable switching point. The functions of the Cyma Tavannes 921 movement include stem winding and setting, as well as a sub-second display.
The Cyma Tavannes 921 features the following functions:
- Stem wind and set
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 2.05 x 0.200 x 520 x 15.5 mm | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
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