Bulova mainspring 9A 9AA 9AAI 9AF 10AK 10AKCS 10AKCSH 10BH 10BM 10BMC 10BMCD + Certina 23-35 + AS 589 1525

1 mainspring Bulova 10AK / Ressort de barillet / Zugfeder (1 piece)

New old stock / neuf de stock

Same mainspring for following calibers (manual winding movements only, not for automatic) :

Bulova 9A 9AA 9AAI 9AF 10AK 10AKCS 10AKCSH 10BH 10BM 10BMC 10BMCD

Certina 23-35

AS 589 and 1525

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)