Waltham Mainspring for 18s No. 2203 (EXACT) - Alloy

Waltham EXACT Mainspring for 18s movements, Factory No. 2203, SWISS White Alloy (unbreakable, rustless), new in envelope. See images for precise mainspring specifications. 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 an adequate job of representing the item.