HR Mainspring No. 236 for Bulova caliber 6S, 8P - Steel

HR Mainspring No. 236 for Bulova caliber 6S, 8P movements and perhaps others, steel, 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 a pretty good job of representing the item.