Newall SUPER Security Mainspring #430 for Elgin 6s Factory No. 824 - Alloy

Newall SUPER Security Mainspring No. 430 for Elgin 6s Movements, Factory No. 824, alloy, new in open package. See images for precise mainspring specifications and 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.