Marco Mainspring #160 for Elgin 0s Factory No. 825 - Steel

Marco Mainspring #160 for Elgin 0s, Factory No. 825, steel, new in frail envelope. See images for further details. May times Marco mainsprings were just repackage factory mainsprings. I likely have several of these so the one you get may differ slightly from the images. I specialize is hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.