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ETA 2640
Ligne: 7.75'''
Jewels: 17
Power Reserve: 45 hrs
Frequency: 28800 vph
Type: Manual Wind
Period used: 1972-1977
Diameter: 17.5 mm
Height: 3.5 mm
Hands: 1.20 x 0.70 x 0.20 mm
Base: ETA 2660
The ETA 2640 is a manual wind mechanical watch movement that was used from 1972 to 1977. It features a sweep second hand and an optional hack feature. The movement also incorporates an Adjustable Stud Holder and Shock Protection for improved durability and accuracy.
The ETA 2640 features the following functions:
- Adjustable Stud Holder
- Manual Winding
- Optional hack feature
- Shock Protection
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.080 x 300 x 7.5 mm | GR3205 | 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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