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Alpina 640
(Alpina Straub)
Ligne: 6.25'''
Jewels: 17
Lift Angle: 51°
Power Reserve: 32 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1950
Diameter: 14 mm
Height: 3.4 mm
Hands: 1.00 x 0.50 mm
The Alpina 640 is a manual wind watch movement that was commonly used around 1950. It shares similarities with the 106U movement, but the specific differences between these two movements are not known.
The Alpina 640 features the following functions:
- Manual Winding
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.060 x 180 x 5.5 mm | GR3171 | Manual | Buy mainspring |
| 1.20 x 0.060 x 180 x 5.5 mm | GR2840 | 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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