Samson Mainspring No. 9037 for Bettlach 1268, Lavina 56, AS 911, 1300 - Steel

Samson No. 9037 steel mainspring for Bettlach 1268, Lavina 56, AS 911, 1300, New Factory Tavannes (NFT) 301, 302, 304 caliber movements and others as well (perhaps ETA 1260), 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 an adequate job of representing the item.