Cortebert mainspring 599 605 609 629 655 / Mido 812

1 mainspring / Ressort de barillet / Zugfeder (1 piece)

New old stock / neuf de stock

Same mainspring for following calibers :

Cortebert 599 605 609 629 655  / Mido 812

Le prix est pour 1 ressort / The price is for 1 mainspring

Livraison sous film neutre / Shipping in neutral zip bag (the last one will be shipped with the original Usibel envelope)