HR Nivastar Mainspring GA17 for International caliber 85 Automatic - Alloy

HR Nivastar Mainspring GA17 for International caliber 86 automatic movements with bridle, alloy, new in envelope. See images for precise mainspring specifications and further helpful information. 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.