NuRezista Security Mainspring #1401 for Wittnauer caliber 5JH - Steel

NuRezista Mainspring No. 1401 for Wittnauer caliber 5JH plus perhaps other similar ébauche watches, steel, new in envelope. See image 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.