Jurgensen Mainspring M574 for Waltham Jewel Series 6/0s No. 2235 - steel

Jurgensen Mainspring M574 for Waltham Jewel Series 6/0s, Factory No. 2235, steel, new in envelope. See image for further details and precise 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.