HR Nivastar Mainspring G249 for Buren 40, 45, Benrus BC - Alloy

HR Nivastar Mainspring G249 for Buren 40, 45 and Benrus BC caliber movement 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 very 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.