Sandsteel Sandalloy Mainspring S2208 for AS 555, 815, 846, 869, 878, 885, 921, 1092, Bulova 6K, 6S, 8P - Alloy

Sandsteel Sandalloy Mainspring S2208 for AS 555, 815, 846, 869, 878, 885, 921, 1092, Abra 6L, 6U, AV 2, Bulova 6K, 6S, 8P, Gruen 106, 107, 109, 155, 159, 306, 685, 1067, 1077, 1597, A. Michel 71, 82 caliber movements, plus perhaps similar ébauche watches, alloy, new in envelope. 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 in hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do a barely adequate job of representing the item.