Samson Mainspring No. 4562 for Wittnauer caliber 6FF, 6FS, 6FA - Steel

Samson No. 4562 steel mainspring for Wittnauer caliber 6FF, 6FS, 6FA and a whole mess of Bulova 6 ligne movements, and many, many others as well, new in envelope. See images for further details including calibers supported (it's quite a list) and 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.