Nivaflex Mainspring for 12s Elgin No. 2339 - Alloy

Nivaflex Mainspring for Elgin 12s, Factory No. 2339, white alloy, new in envelope. See images for further details. 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 and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.