Marco Mainspring #273 for Waltham 6/0s "C" & "D" Model 1945 No. 2248 - Steel

Marco Mainspring No. 273 for Waltham 6/0s "C" & "D" Model 1945 Running Barrel movements, Factory No. 2248, 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 is hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.