CR Mainspring for Waltham 16s Factory No. 2208 - Steel

Charles Robert Mainspring for Waltham 16s, Factory No 2208, steel, T end, new in replacement envelope. I likely have several of these so the one you get may differ slightly from the images. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.