HR Nivastar Mainspring G353 Universal 207 - Alloy

HR Nivastar Mainspring G353 for Universal 207 caliber movements plus perhaps other Universal bracelet movements, white alloy, new in envelope. See image 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 an adequate job of representing the item.