HR Nivastar Mainspring G429A for Wittnauer 11AW, Font 62, Benrus Y - Alloy

HR Nivastar No. G429A alloy mainspring for Font 62, Benrus Y, Unitas 190 & Wittnauer 11AW caliber movements, new in envelope. See images for all calibers supported and 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.