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Alpina 634
(Alpina Straub)
Ligne: 16.5'''
Jewels: 15
Power Reserve: 40 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 634 is an open face calibre watch movement that features varying bridge shapes and is likely equipped with a left-handed ratchet-wheel screw. It belongs to a set of movements including the 285, 293, 299, 303, 327, 331, 335, 339, 345, and 497, but the differences between these models are not currently known. The Alpina 634 movement is designed to provide the functions of stem winding and setting, as well as a sub second display. It was commonly used around the period of 1940.
The Alpina 634 features the following functions:
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.50 x 0.180 x 450 x 15.0 mm | Manual | Buy mainspring | |
| 1.50 x 0.175 x 440 x 14.5 mm | GR43071 | 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
| Part Description | Reference # | Alternate | Buy |
|---|
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