Bulova mainspring 10BA 10BAC 10BE 10BX 11ZE / Eterna 1020 1078 1079

1 Mainspring / ressort de barillet (1 piece)

Neuf de stock / New old stock

Inox premium quality

Same mainspring for all following calibers :

Bulova 10BA 10BAC 10BE 10BX 11ZE

Eterna 1020 1078 and 1079 (not for other Eterna caliber, the 3 calibers 1247 1248 and 1249 on the picture require a special mainspring for automatic movement)

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