Marco Mainspring #3313 for Wittnauer caliber 8T, 33, 34, 42 - Steel

Marco Mainspring No. 3313 for Wittnauer 8T, 33, 34, 42 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 an adequate of representing the item.