BESTFIT Mainspring 912M for A.S. 1220 & 1221 - Alloy

BESTFIT Mainspring 912M for A.S. 1220 & 1221 plus perhaps 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.