HR Mainspring No. E460 for Buren 370, AS 922 - 944, Benrus J - Steel

HR Ev-R-Last mainspring E460 for Buren 370, AS 922 - 944, Benrus J caliber movements plus perhaps others, steel, new in envelope. See images for all calibers supported and 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 satisfactory job of representing the item.