Comsco Mainspring #1146 for Illinois 14s & 16s No. 47334A - Steel

Comsco Mainspring No.1146 for Illinois 14s & 16s, Factory 47334A, steel, new in envelope. See images for 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. mages do a pretty good job of representing the item.