3H Monogram Mainspring for 12s Waltham No. 2224 - Steel

3H Monogram Co. Mainspring for 12s Waltham 1st model Pocket Watch, Factory No. 2224, Hook (Tab) End, steel, new in envelope. See images for further details. Make sure the hook end is what you need and not a HOLE end. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.