ACIER Mainspring for A.S. calibers 1215, 1216, 1290, 1291, Junghans 80 - Steel

ACIER steel mainspring for A.S. caliber 1215, 1216, 1290, 1291, Junghans 80 & Lemania S27, S27T1 caliber movements plus perhaps many other similar ébauche movements as well, steel, new in envelope. 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.