HR Nivastar Mainspring G423 for AS 1234, Buren 360, Movado 165 - Alloy

HR Nivastar Mainspring G423 for AS 1234, Buren 360, Movado 165, Bulova 5AD, 5AH caliber movements, 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 is 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.