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UTC-Unitime 231A
(Unitime)
Jewels: 17
Lift Angle: 49°
Power Reserve: 45 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1939-1963
Diameter: 30.5 mm
Height: 4.05 mm
Hands: 1.40 x 0.75 / 0.19 mm
The UTC-Unitime 231A watch movement, produced between 1939 and 1963, encompassed a total production of 3,000,000 units. It incorporated a Breguet hairspring and was equipped with Incabloc Shock Protection from 1943 onwards. This movement operated through manual winding and featured sub-second functionality.
The UTC-Unitime 231A features the following functions:
- Incabloc Shock Protection
- Manual Winding
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.53 x 0.122 x 370 x 11.0 mm | Manual | Buy mainspring | |
| 1.50 x 0.125 x 360 x 11.0 mm | GR4186 | Manual | Buy mainspring |
| 1.50 x 0.130 x 340 x 11.0 mm | GR4197 | 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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