HR Ev-R-Last Mainspring E446B for Brac caliber 180, 181 - Steel

HR Ev-R-Last No. E446B steel mainspring for Brac 180, 181 caliber movements plus perhaps similar ébauche watches, steel, new in envelope. See images for precise mainspring specifications. I know it says 126.180 but it's not the proper mainspring for a caliber 126 so that's just a misprint. I specialize is hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.