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Bettlach 8107
(EB)
Ligne: 8.75'''
Jewels: 17
Power Reserve: 34 hrs
Frequency: 18000 vph
Type: Automatic
Period used: ~1955
Diameter: 19.7 mm
Height: 5.6 mm
Hands: 1.30 x 0.80 x 0.20 mm
The Bettlach 8107 is an automatic watch movement belonging to the equivalent automatic family of Eterna 1319 through 1324 with ball bearing. The differences between the ETA 1308, 1318, and 1322 are not known. The Bettlach 8107 movement features an automatic winding system, a sweep second function, and was in use around 1955.
The Bettlach 8107 features the following functions:
- Automatic Winding
- Sweep second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.35 x 0.080 x 250 x 7.5 mm | Auto | 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
| Part Description | Reference # | Alternate | Buy |
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