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Bettlach 1431N
(EB)
Ligne: 12.75'''
Jewels: 15
Power Reserve: 39 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1945-1948
Diameter: 28.5 mm
Height: 5.0 mm
Hands: 1.50 x 0.80 / 0.20 mm
The Bettlach 1431N watch movement, introduced between 1945 and 1948, is the initial HPP calibre with notable features such as a die-casted baseplate, ratchet on the dial side, and a crown mechanism involving a rocker bar. This mechanical movement offers manual winding and includes a sub-second function.
The Bettlach 1431N features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.80 x 0.130 x 330 x 11.0 mm | 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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