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Watchmakers and hobbyists: if you're servicing a vintage movement from the ETA 2750 family, you might need a fresh mainspring.

This is a mainspring barrel spring for ETA calibers including 2750, 2751, 2752, 2754, 2755, 2756, 2758, and 2759.
It's new old stock, but without the original packaging (sold as new without tags).

It's made by Eta, so it's genuine Swiss quality.
If your movement is running weak or not at all, a tired mainspring is often the culprit.
This replacement will get that power reserve back and the balance wheel swinging.

Perfect for restoration projects.

Brand is Eta, compatible with Eta movements.

No MPN or EAN listed, but it's the real deal for these classic calibers.
4.7 out of 5