NuTemper Mainspring #515 for Elgin 12s #2874 - steel

NuTemper mainspring #515 for Elgin 12s movements, Factory No 2874, steel, new in possibly very frail 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 barely adequate job of representing the item.