HR Quick Fit Mainspring K428 for Tissot caliber 27, 27.2 - Alloy

HR Quick Fit No. K428 white alloy mainspring for Tissot caliber 27, 27.2 and perhaps others as well, 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.