Comsco Mainspring #1117 for Hamilton 6/0s Factory No. 2321 - Steel

Comsco Mainspring #1117 for Hamilton 6/0s 17j movements, Factory No. 2321, steel, 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.