Marco Mainspring #3283 for Wittnauer caliber 11ES - Steel

Marco steel mainspring No.3283 for Wittnauer 11ES movements and perhaps others, new in envelope. T-Brace end. 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 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.