Waltham Mainspring for 12s No. 2224A / 2279 (EXACT) - Alloy

Waltham EXACT Mainspring for 12s movements, Factory No. 2224A / 2279, SWISS White Alloy (unbreakable, rustless), new in envelope. See images for precise mainspring specifications. 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 so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do a barely adequate job of representing the item.