HR Mainspring A760 for Waltham 6/0s "C" & "D" Model 1945 No. 2248 - Steel

HR Mainspring No. A760 for Waltham 6/0s "C" & "D" Model 1945 Running Barrel movements, Factory No. 2248, steel, new in envelope. See images for precise mainspring specifications. I specialize is hard to find watch parts and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.