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Alpina 291
(Alpina Straub)
Ligne: 12'''
Jewels: 4
Power Reserve: 33 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1940
Diameter: 26.7 mm
Height: 4.9 mm
Hands: 1.66 x 0.40 / 0.21 mm
The Alpina 291 watch movement features a pin lever escapement and a ratchet on the dial side. Its crown mechanism is equipped with a rocker bar. The 51/4 and 51/4a models have only minor differences between them. This movement is manually wound and includes a sub-second function. The Alpina 291 movement was commonly used around the period of 1940.
The Alpina 291 features the following functions:
- Manual Winding
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.80 x 0.120 x 320 x 10.5 mm | Manual | Buy mainspring | |
| 1.80 x 0.135 x 320 x 10.0 mm | GR5318 | 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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