NuTemper Mainspring No. 1402 for Wittnauer 6FF movements - steel

NuTemper mainspring No. 1402 for Wittnauer caliber 6FF, 6FS, 6FA movements, and quite likely 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.