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Bettlach 8371-67
(EB)
Ligne: 12'''
Jewels: 7/17/23
Power Reserve: 41 hrs
Frequency: 21600 vph
Type: Manual Wind
Period used: ~1970
Diameter: 27 mm
Height: 4.8 mm
Hands: 1.80 x 1.30 x 0.20 mm
The Bettlach 8371-67 is a manual wind watch movement with a sweep second function. It features a day and date display that can be set by +/-24h and quickset by reverse setting respectively. The movement includes a jeweled lever and was commonly used around the period of 1970. Notably, the late samples of this movement have a glued hairspring terminal, a stem mechanism without a setting-lever spring, and a peculiar arrangement where the train and hand gear are separately driven by the barrel.
The Bettlach 8371-67 features the following functions:
- Date: quickset by reverse setting
- Day and Date Display
- Day: set by +/-24h
- Manual Winding
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.40 x 0.110 x 340 x 10.0 mm | GR3700 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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Documents
Parts Listing
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