Marathon Mainspring #36 for Bulova 17AP, 17P - Steel

Marathon steel mainspring No. 36 for Bulova 17AP, 17P caliber movements plus perhaps other similar ébauche watches. 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.