Newall SUPER Security Mainspring #436 for Elgin 0s No. #6094 (825) - Alloy

Newall SUPER Security Mainspring #436 for Elgin 0s, Factory No. 6094 (825 in steel), alloy, typical Elgin DB&H end, new in envelope. When a steel mainspring the Factory No. is 825. See image for further details and precise mainspring specifications. I likely have several of these so the one you get may differ slightly from the images. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.