HR Quick Fit Mainspring K349 for Universal 220, Gruen 215, 216, 217 - Alloy

HR Quick Fit Mainspring K349 for Universal caliber 220, Peseux caliber 80, Gruen caliber 215, 216, 217 movements plus perhaps similar ébauche watches, white alloy, new in envelope. See image for 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.