Temp-Rite Mainspring for Elgin 18s No. 812 - Steel

Temp-Rite Mainspring for Elgin 18s, Factory No. 812, steel, new in envelope. See images for further details. 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.