Bulova Factory Mainspring for caliber 9AS - Steel

Bulova Factory Mainspring for caliber 9AS, steel, new in sealed envelope. I believe this mainspring fits other 9 ligne Bulova movements as well. See images for further details. The wonderful thing about factory mainsprings is they always fit! 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 marginally adequate job of representing the item.