HR Mainspring No. 940 for Buren 13L Caliber 525 Automatic movements - Steel

HR No. 940 steel mainspring for Buren 13 ligne Caliber 525 automatic movements. 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.