WATCH-CRAFT Mainspring 3085W for ETA 1100, 1120, Gruen 47, Eterna 1118, Unitas 173, 174 - Alloy

WATCH-CRAFT Mainspring 3085W for ETA 1100, 1120, Gruen 47, Eterna 1118, Unitas 173, 174 caliber movements, alloy, new in envelope. See images for precise mainspring specifications and further details. 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 and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.