1 mainspring / Ressort de barillet / Zugfeder / (1 piece)
New old stock / neuf de stock
Same mainspring for following calibers : Revue 30 and Minerva 3 9 19/3-LS
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 packet)