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Unitas 343
Jewels: 15
Power Reserve: 33 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1895-1898
Diameter: 45.75 mm
Height: 10.1 mm
Hands: 2.46 x 1.27 / 0.30 mm
The Unitas 343 watch movement was produced between 1895 and 1898, with a total production of 21,100 units. It features an open face calibre, specifically the model 5. The movement includes a bimetallic screw balance and a Breguet hairspring. Notably, the ratchet is positioned under the base plate and it incorporates a negative stem mechanism with a rocker bar. The movement supports stem winding, which can be switched using either the crown or lever, and includes a sub-second function.
The Unitas 343 features the following functions:
- Stem wind, switching by crown or lever
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 2.90 x 0.230 x 540 x 18.0 mm | DBH | 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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