Marco Mainspring #210 for Waltham 16s Factory No. 2208 - Steel

Marco Mainspring #210 for Waltham 16s Model 1872 Lever Set movements, Factory No. 2208, T-end, steel, new in frail 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 is hard to find watch parts and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item