NuTemper Mainspring #514 for Elgin 12s Factory No. 1712 - Steel

NuTemper Mainspring #514 for Elgin 12s movements, Factory No 1712, steel, new in 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 an adequate job of representing the item.