Marco Mainspring No. 3052W for Buren caliber 875 - Alloy

Marco Mainspring No. 3052W for Buren caliber 875 movements, and perhaps others as well, alloy, 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.