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Unitas 631
Ligne: 6.75 x 8'''
Jewels: 17
Power Reserve: 47 hrs
Frequency: 21600 vph
Type: Manual Wind
Period used: 1976-1980
Size: 15.3 x 18.2 mm
Height: 3.6 mm
Hands: 1.10 x 0.60 mm
Base: Fontainemelon 69
The Unitas 631 watch movement was produced during the period of 1976-1980. It featured different regulators like the 2136 version. The movement employed manual winding and included shock protection.
The Unitas 631 features the following functions:
- Manual Winding
- Shock Protection
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.60 x 0.080 x 250 x 7.5 mm | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
|---|---|---|---|
| See More |
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
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