Parte di servizio orologio a molla principale per calibro CERTINA 74 25-651 262 320 410 605 ecc.

If your watch does not yet need a service, keep one for future use, as these are getting harder and harder to find. These mainsprings are produced inSwitzerland byGenerale Ressorts, one of the biggest (if not the biggest) and most reputable mainspring manufacturers in the world.

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