HR Quick Fit Mainspring K457 for Arogne 190, Felsa 400, Font 73, Faver 250 - Alloy

HR Quick Fit Mainspring K457 for Arogne 190, Felsa 400, Font 73, Faver 250 caliber movements plus perhaps others as well, white 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 pretty good job of representing the item.