Elgin Factory Magistral Super Mainspring for 12s No. 6086 (2339) - Alloy

Elgin Factory Magistral Super Mainspring for 12s movements, Factory No. 6086, alloy, new in envelope. This is a functional equivalent of a steel 2339. See images for further details. These where available in a couple of different strengths and those that I can supply can be found in the drop down list. 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.