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This is a generic mainspring fitting Rolex calibers 1220 / 1225, Swiss made. Designed as a replacement to restore power and amplitude for manual-wind Oysterdate models and similar timepieces.
Type: Mainspring
Compatible Calibers: Rolex 1220 / 1225
Origin: Swiss Made
Condition: Brand New
Nature: Generic replacement (not in Rolex packaging)
1. Is it genuine?
This is a generic mainspring, not in Rolex packaging. Swiss generic parts are made to the same standards, with identical size and strength, and no performance difference.
2. How is the quality?
Swiss made with strict dimensional tolerances, delivering consistent torque and restoring factory amplitude at a fraction of the genuine cost.
3. What calibers does it fit?
Fits Rolex 1220 and 1225. Both calibers share the same mainspring specification and are interchangeable.
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