HR Quick Fit Mainspring K635 for Hanhart caliber 50, 51, 52, 54 Chronograph - Alloy

HR Quick Fit Mainspring K635 for Hanhart caliber 50, 51, 52, 54 Chronograph movements, white alloy, new in envelope. See images for precise mainspring specifications and ignore the reference to AS 1032 as I don't see how this mainspring would ever fit that movement. 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.