Marco Mainspring #3236 for Alpina 566, AS 1051, 1152, 1229, Aurore 41 - Steel

Marco Mainspring No. 3236 for Alpina 566, AS 1051, 1152, 1229, Aurore 41, Benrus BP, CA caliber movements, and perhaps others, 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.