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Felsa 4012
Ligne: 10.5'''
Jewels: 15/17
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1935
Diameter: 23.3 mm
Hands: 1.40 x 0.80 mm
The Felsa 4012 is a mechanical watch movement with a bimetallic screw balance. It falls within a group of movements that includes the 86, 88, 89, 136, 138, 285, and 327, but the specific differences between them are not known. The Felsa 4012 movement was utilized in watches with manual wind functionality, a sweep second hand, and is estimated to have been in use around 1935.
The Felsa 4012 features the following functions:
- Manual Winding
- Sweep second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.70 x 0.095 x 320 x 9.0 mm | GR4870 | Manual | Buy mainspring |
| 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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