Alloy Mainspring for Helvetia (General) 18½ ligne caliber 32, 38, 38 LP

Unmarked Swiss Mainspring for Helvetia (General) 18½ ligne caliber 32, 38, 38 LP movements plus perhaps similar size watches (Certina 41, Otero 27/12 perhaps), white alloy. See images for precise mainspring specifications. I specialize in hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.