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Zentra 22
Jewels: 11
Power Reserve: 33 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1886-1895
Diameter: 45.75 mm
Height: 10.1 mm
Hands: 2.46 x 1.27 / 0.30 mm
The Zentra 22 watch movement, produced from 1886 to 1895, encompassed 72,000 units. This open face calibre, model 5, featured a bimetallic screw balance and a Breguet hairspring. Notably, it incorporated an unusual ratchet under the base plate and a negative stem mechanism with a rocker bar. The movement offered stem wind functionality, switchable by the crown or lever, along with a sub-second function.
The Zentra 22 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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