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Unitas 331
Ligne: 10.5'''
Jewels: 15/17
Power Reserve: 37 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1950
Diameter: 23.3 mm
Height: 4.0 mm
Hands: 1.20 x 0.55 / 0.16 mm
The Unitas 331 is a manual wind watch movement with a sub second function. It was manufactured around the period of 1950.
The Unitas 331 features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 574 | Ordinary/None | Buy staff |
| 577 | Ordinary/None | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.60 x 0.100 x 300 x 9.0 mm | GR4486 | Manual | Buy mainspring |
| 1.60 x 0.090 x 280 x 8.5 mm | Manual | Buy mainspring | |
| 1.50 x 0.110 x 320 x 9.5 mm | GR4150 | 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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