BESTFIT Mainspring 515C for AS 976, 1012, Bulova 5AB, 5AC, 6AL, Benrus Q - Alloy

BESTFIT Mainspring 515C for A.S. 976, 1012, Benrus Q, Bulova 5AB, 5AC, 6AL plus perhaps similar ébauche watches, white alloy. I've seen it noted that it will also fit an Elgin grade 700. See images for precise characteristics. I likely have several of these so the one you get may vary slightly from the images. 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.