Newall SUPER Security Mainspring #533 for 12s Waltham #2224A - Alloy

Newall SUPER Security Mainspring #533 for 12s Waltham, Factory No. 2224A, alloy, new in envelope. See image for further details. 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.