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Alpina 231
(Alpina Straub)
Ligne: 16.5'''
Jewels: 15
Power Reserve: 43 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1940
Diameter: 37.2 mm
Height: 4.2 mm
Hands: 2.00 x 1.15 / 0.27 mm
The Alpina 231 watch movement, which was in use around the 1940s, is an open face calibre movement that features varying bridge shapes. While the differences between the Alpina 231 and Unitas 347 movements are not specified, the Alpina 231 is known to possess stem winding and setting capabilities, as well as a sub-second function.
The Alpina 231 features the following functions:
- Stem wind and set
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.90 x 0.180 x 450 x 15.0 mm | Manual | Buy mainspring | |
| 1.50 x 0.180 x 420 x 14.0 mm | GR4312 | 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) |
|---|
Documents
Parts Listing
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