HR Quick Fit Mainspring K188 for Buren 295, Gruen 300, 327, 330, 530 - Alloy

HR Quick Fit Mainspring K188 Mainspring for Buren caliber 295, Gruen caliber 300, 327, 330, 530 movements plus possibly others, white alloy, 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.