HR Quick Fit Mainspring No. K417 for Wittnauer 5JH & 5UN - Alloy

HR Quick Fit No. K417 white alloy mainspring for Wittnauer 5JH & 5UN caliber movements, new in envelope. See images for precise mainspring specifications. I likely have several of these so the one you get may differ slightly from the images. 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 a pretty good job of representing the item.