HR Mainspring E626 for Wittnauer 7T-49 Revue - Steel

HR Ev-R-Last Mainspring for Wittnauer caliber 7T-49 Revue movements, as well as perhaps others. 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.