Bulova Factory Mainspring for caliber 9ASC - Steel

Bulova Factory Mainspring for caliber 9ASC and perhaps other Bulova calibers as well, steel, new in sealed envelope. See images for further details. The wonderful thing about factory mainsprings is they always fit! I specialize is hard to find watch parts and have a seemly bottomless supply of Bulova parts (Factory and aftermarket) so I'll usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.