Dynaflex Mainspring for 6/0s Hamilton No. 2321 - Alloy

Dynaflex Mainspring for Hamilton 6/0s Movements, Factory No. 2321 / 2521 / 718201 / 718202, alloy, 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 pretty good job of representing the item.