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Bettlach 1431NN
(EB)
Ligne: 11.5'''
Jewels: 15/17
Power Reserve: 40 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1955
Diameter: 23.7 mm
Height: 4.05 mm
Hands: 1.35 x 0.80 / 0.22 mm
Base: General 800
The Bettlach 1431NN watch movement, which was in use around 1955, features different bridge shapes and some late samples were equipped with Kif-Duofix combined settings for the escapement wheel. This movement is manual wind and incorporates a sub second function.
The Bettlach 1431NN features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.60 x 0.100 x 300 x 9.0 mm | GR4486 | 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
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