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Zenith 5 1/2
Ligne: 10.5'''
Jewels: 17/21
Power Reserve: 33 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1955
Diameter: 23.7 mm
Height: 4.15 mm
Hands: 1.30 x 0.80 x 0.22 mm
The Zenith 5 1/2 watch movement was developed in 1955. It features beryllium bronze wheels and includes two variants of the manual wind gear and two balances. The low production quantity suggests that it was likely produced for a short period, possibly around one year, indicating that it may have been an experimental model. The movement offers functions such as manual wind and sweep seconds.
The Zenith 5 1/2 features the following functions:
- Manual Winding
- Sweep second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.110 x 290 x 9.5 mm | Manual | Buy mainspring | |
| 1.20 x 0.110 x 300 x 9.0 mm | GR2949 | 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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