HR Mainspring No. 446A for Wittnauer caliber 69 - Steel

HR mainspring No. 446A for Wittnauer 69 & Revue 69, 69-9 caliber movements and perhaps others, steel, new in envelope. 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.