HR Quick Fit Mainspring K625 for Kurth 340, 350, Bulova 7AD, 7AM - Alloy

HR Quick Fit mainspring No K625 for Kurth 340, 350, Bulova 7AD, 7AM and A.S. 964, 1023 plus perhaps similar ébauche movements as well, alloy, new in envelope. See images for further data and 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 a satisfactory job of representing the item.