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Zenith 20.5
Ligne: 10.5'''
Jewels: 15/17
Power Reserve: 40 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1940
Diameter: 23.3 mm
Height: 3.8 mm
Hands: 1.30 x 0.80 / 0.20 mm
The Zenith 20.5 is a manual wind mechanical watch movement with sub-second functionality. It is part of a group of movements that includes the 984, 1009, 1010, 1013, 1028, 1033, 1035, 1038, 1048, 1050, 1055, 1077, 1084, 1089, 1091, 1141, 1211, 1218, 1231, 1259, 1277, 1285, 1313, 1377, 1440, 1614, with no known differences between them except for bridge shapes. The Zenith 20.5 was commonly used around the 1940s.
The Zenith 20.5 features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.70 x 0.100 x 290 x 9.0 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) |
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Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
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