R.U.N Eternipower Mainspring A608A for Bulova 10L, 13AP, Buren 460, 461 - Alloy

R.U.N Eternipower Mainspring A 608A for Fleurier 290, 310, 330, 340, Bulova 10L, 13AP, Buren 460, 461 caliber movements plus perhaps similar ébauche watches, white 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.