Jurgensen Mainspring #573 for Waltham Jewel Series 6/0s No. 2235 - Steel

Jurgensen Mainspring #573 for Waltham Jewel Series 6/0s, Factory No. 2235, steel, new in envelope. See images for further details and precise mainspring specifications. 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.