WATCH-CRAFT Mainspring 3522W for Bulova 7BU, 7WF, Benrus AF, Rolex 1061 - Alloy

WATCH-CRAFT Mainspring 3522W for Bulova 7BU, 7WF, Benrus AF, Rolex 1061 caliber movements plus perhaps other similar ébauche movements as well, white alloy, new in envelope. See images for precise mainspring specifications. 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.