BESTFIT Mainspring 311C for Gruen caliber 130, 131, 132 - Alloy

BESTFIT Mainspring 311C for Gruen caliber 130, 131, 132 movements plus perhaps other similar ébauche watches, white alloy. See images for precise mainspring specifications. I likely have several of these so the one you get may differ slightly from the images. 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.