HR Quick Fit Mainspring K263A for ETA 620, Universal 500, Eterna 625 - Alloy

HR Quick Fit Mainspring No K263A for ETA caliber 620, Universal caliber 500, Eterna caliber 625 and Felsa caliber 370, 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.