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ETA 1090
Ligne: 18.5'''
Jewels: 15/17
Power Reserve: 41 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1945
Diameter: 41.65 mm
Height: 4.2 mm
Hands: 1.98 x 1.12 / 0.26 mm
The ETA 1090 is an open face calibre watch movement that offers the option of including a Breguet hairspring. It features varying bridge shapes, with a possible left-handed ratchet-wheel screw. The specific differences between the 233, 237, 241, 247, 253, 257, 263, 269, 275, 281, 443, 453, 475, and 481 are not known and they likely represent catalog designations for these different bridge shapes. The movement enables stem winding and setting, along with sub seconds. It was commonly used around the period of 1945.
The ETA 1090 features the following functions:
- Stem wind and set
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.50 x 0.210 x 490 x 17.0 mm | Manual | Buy mainspring | |
| 1.50 x 0.210 x 480 x 15.5 mm | GR4365 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
|---|---|---|---|
| See More |
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
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