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Zenith 5 1/2
Ligne: 18.5'''
Jewels: 15/17
Power Reserve: 41 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1945
Diameter: 41.65 mm
Height: 4.7 mm
Hands: 2.00 x 1.15 / 0.26 mm
The Zenith 5 1/2 is a mechanical watch movement with an open face calibre. It offers stem winding and setting capabilities, along with a sub second function. It is believed to feature an optional Breguet hairspring and possibly a left-handed ratchet-wheel screw. The movement is part of a group which includes the 431, 435, 439, 445, 451, and 479, although the differences between them are not known and are likely related to the varying bridge shapes. The Zenith 5 1/2 was commonly used around 1945.
The Zenith 5 1/2 features the following functions:
- Stem wind and set
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 2.00 x 0.200 x 475 x 16.5 mm | Manual | Buy mainspring | |
| 1.90 x 0.210 x 520 x 16.5 mm | GR5676 | 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
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