NuRezista Mainspring #515 for Elgin 12s Factory No. 2874 - Steel

NuRezista steel mainspring #515 for Elgin 12s Thin Model movements, Factory No 2874, 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 a pretty good job of representing the item.