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IWC 422
Ligne: 5.75 x 8.5'''
Jewels: 15
Power Reserve: 43 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1950
Size: 12.8 x 19.5 mm
Height: 3.6 mm
Hands: 1.20 x 0.60 mm
The IWC 422 watch movement shares many common parts with the Eterna 1057 movement. The specific differences between the 1201-1210, 1212, 1214, and 1215 variations of the movement are not known. It is likely that these numbers were assigned to denote variations in base plates, bridge layouts, and lever bridges. The IWC 422 movement is a manual wind movement that was primarily used around the year 1950.
The IWC 422 features the following functions:
- Manual Winding
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.080 x 260 x 7.5 mm | GR3203 | Manual | Buy mainspring |
| 1.30 x 0.080 x 245 x 7.5 mm | Manual | Buy mainspring |
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