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ETA 2641
Jewels: 21
Power Reserve: 34 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1917
Diameter: 39.75 mm
Height: 5.0 mm
Hands: 1.50 x 0.92 / 0.26 mm
The ETA 2641 watch movement, introduced in 1899, is an open face calibre, specifically the model 3. It consists of a bimetallic screw balance and a Breguet hairspring. The movement features a negative stem mechanism with an adjustable switching point. Its functions include stem winding and setting, as well as a sub-second indicator. The ETA 2641 was commonly used during the period around 1917.
The ETA 2641 features the following functions:
- Stem wind and set
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 2.05 x 0.200 x 520 x 15.5 mm | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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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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