Sandsteel Mainspring for 6s Hampden Factory No. 8696 - Steel

Sandsteel Mainspring for 6s Hampden 7 to 15 jewel movements, Factory No. 8696, steel, new in envelope. Could also very well fit in other movements as well. 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 and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.