HR Nivastar Mainspring G927 for Zenith caliber 525 - Alloy

HR No. G927 Nivastar alloy mainspring for Zenith caliber 525 movements, DB&H end, new in envelope. See images for precise mainspring specifications. 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.