BESTFIT Mainspring WA12 for Gruen 460, 470, 475, Buser 20, AS 1320, 1323 - Alloy

BESTFIT Mainspring with attached bridle WA12 for Gruen 460, 470, 475, Buser 20, AS 1320, 1323, Bulova 9AS & 9ASC, 10AUC, 10BRC plus perhaps similar ébauche watches, white alloy. See images for precise characteristics. 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.