MARCO Mainspring 2851W for Benrus CF, Wittnauer 11RW, ETA 1156 - Alloy

Marco Mainspring 2851W for Benrus CF, Wittnauer 11RW and ETA 1156 plus perhaps similar watches, white alloy. See images for precise characteristics. 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.