Rezista Mainspring #204 for Bulova 10BL, 10ZL, Felsa 335, 336, Fleurier 170 - Steel

Rezista steel mainspring #204 for Bulova 10BL, 10ZL, Felsa 335, 336, Fleurier 170 caliber movements plus perhaps other similar ébauche wrist watches, new in envelope. See images for precise mainspring specifications. I specialize is hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.