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Return To ShopThe ETA 2540 is an open face calibre watch movement that incorporates a Breguet hairspring. It offers options such as a hack feature and Reed's regulator. The movement includes functions such as stem winding and setting, a sub-second display, and was commonly used around the period of 1930.
The ETA 2540 features the following functions:
Ronda Reference # | Shock System | Buy |
---|---|---|
3461 | Ordinary/None | Buy staff |
4930 | Ordinary/None | Buy staff |
4428 | Incabloc | Buy staff |
4641 | Rubyshock | Buy staff |
4316 | Rubyshock | Buy staff |
3135 | Supershock | Buy staff |
Dimensions | GR Reference # | End Type | Buy |
---|---|---|---|
1.25 x 0.080 x 220 x 7.0 mm | GR3081 | Manual | Buy mainspring |
1.20 x 0.080 x 220 x 6.5 mm | GR2869 | Manual | Buy mainspring |
1.20 x 0.080 x 190 x 6.5 mm | Manual | Buy mainspring |
Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
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