Alloy Mainspring 60704 for 18s Waltham Factory No. 2222

Unmarked SWISS Maker Alloy Mainspring WAL 60704 for 18s Waltham, Factory No. 2222, Hole End, new in envelope. See images for 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.