HR Mainspring SA314 for 8/0s Hampden Factory No. 15696 - Alloy

HR Mainspring SA314 for Hampden 8/0s Movements, Factory No. 15696, T end, alloy, new in envelope. See image 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 and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.