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ETA 991
Ligne: 9.75'''
Jewels: 6/15
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1945
Diameter: 21.7 mm
Height: 4.0 mm
Hands: 1.20 x 0.60 mm
The ETA 991 is a mechanical watch movement that shares similarities with the Felsa 145, 201, 204, 229, and 236 movements. It is a manual wind movement with a sub second function. The ETA 991 was produced around 1945.
The ETA 991 features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 2941 | Ordinary/None | Buy staff |
| 981 | Ordinary/None | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.70 x 0.090 x 240 x 7.5 mm | GR4851 | Manual | Buy mainspring |
| 1.10 x 0.090 x 250 x 8.0 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) |
|---|
Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
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