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ETA 2521
Ligne: 11.5'''
Jewels: 21/25
Power Reserve: 38 hrs
Frequency: 21600 vph
Type: Automatic
Period used: 1972-
Diameter: 26 mm
Height: 5.3 mm
Hands: 1.50 x 0.90 x 0.21 mm
The ETA 2521 watch movement, introduced in 1972, underwent a transitional development process. Initially, early samples featured separate click and click-spring components, while later versions adopted a single-part click mechanism. This movement incorporates various functions such as automatic winding, sweep seconds, and an adjustable stud holder. In addition, it possesses a calendar feature that allows the setting of the date by changing the time to 20:30-24h. The ETA 2521 movement has been utilized from 1972 onwards.
The ETA 2521 features the following functions:
- Adjustable Stud Holder
- Automatic Winding
- Calendar
- Date function: set by changing 20:30-24h
- Sweep second hand
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.100 x 340 x 10.0 mm | GR3256X | Auto | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
|---|---|---|---|
| See More | |||
| See More |
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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Documents
Parts Listing
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