HR Quick Fit Mainspring K658 for Felsa 390, AS 1203, Benrus BS, Lapanouse 153 - Alloy

HR Quick Fit No. K658 white alloy mainspring for Felsa 390, AS 1203, Benrus BS, Lapanouse 153 caliber movements, new in envelope. See images for precise mainspring specifications. I specialize is 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.