Comsco Mainspring #1102 for Hamilton 18s Factory No. 232 - Steel

Comsco Mainspring #1102 for Hamilton 18s movements, Factory No. 232, steel, new in envelope. See images for further 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 an adequate job of representing the item.