HR Mainspring No. E542 for ETA 1080, AS 1287, 1294, Benrus BH, BK - Steel

HR Ev-R-Last mainspring E542 for ETA 1080, AS 1287, 1294, Tavannes 010 - 030, and Benrus BH, BK caliber movements, steel, new in dirty envelope. See images for precise calibers supported and 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.