Trufit Mainspring for Bulova caliber 10AN - Steel

Trufit steel mainspring for Bulova caliber 10AN movements and other similar calibers (10AE, 10AX, etc.), new in envelope. See images for precise mainspring specifications. I likely have several of these so the one you get may differ slightly from the images. I specialize in 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.