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Felsa 21
Ligne: 10.5'''
Jewels: 15/17
Power Reserve: 41 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1950
Diameter: 23.35 mm
Height: 3.5 mm
Hands: 1.40 x 0.80 / 0.22 mm
The Felsa 21 watch movement is part of the ETA 900 series, which also includes the 902, 903, 927-929, 938, 941, and 968 models. These movements may have different bridge designs, but specific differences are not widely known. The Felsa 21 movement is a manual wind movement with sub-second functionality. It was typically used in watches produced around the 1950s.
The Felsa 21 features the following functions:
- Manual Winding
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.55 x 0.100 x 290 x 9.0 mm | Manual | Buy mainspring | |
| 1.55 x 0.105 x 280 x 9.0 mm | GR4390 | 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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