HR Quick Fit Mainspring K552 for Cyma 404, Eta 865, Pierce 100 - Alloy

HR Quick Fit No. K552 white alloy mainspring for Cyma 404, Eta 865, Pierce 100 & Fleurier 86, 170 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.