NuRezista Mainspring #592A for Waltham 6/0s "C" Model 1945 No. 2248 - Alloy

NuRezista Mainspring No. 592A for Waltham 6/0s "C" Model 1945 Running Barrel movements, Factory No. 2248, alloy, 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.