Zenith mainspring 525 525.8

1 Mainspring / Ressort de barillet / Zugfeder

for  Zenith 525 and 525.8

Double brace and hole / Bride à aillettes et trou

The price is for 1 piece

New old stock / neuf de stock

Livraison sous film neutre / Shipping in neutral zip bag (the last one will be shipped with the packet on pictures)