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Zenith 57.8
Ligne: 9.75'''
Jewels: 15
Power Reserve: 32 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1925-
Diameter: 21.7 mm
Height: 3.5 mm
Hands: 1.05 x 0.60 / 0.18 mm
The Zenith 57.8 watch movement, which was used between 1925 and the period after, features a bimetallic screw balance and a Breguet hairspring. It is equipped with a stem mechanism without a setting-lever spring. Differences between the 115 and 116 variations are not documented. This movement is manually wound and includes a sub-second function.
The Zenith 57.8 features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.10 x 0.105 x 265 x 8.5 mm | 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
| Part Description | Reference # | Alternate | Buy |
|---|
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