NuVigor Mainspring No. 505 for Buren 8 Day Clock - Steel

NuVigor No. 505 steel mainspring for 22 ligne Buren 8-Day movements, and perhaps others. See images for precise mainspring specifications. 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.