Samson Mainspring No. A36 for Eterna 7¾ ligne caliber 1033 & 1034 movements - Steel

Samson No. A36 steel mainspring for Eterna 7¾ ligne caliber 1033 & 1034 movements plus perhaps others, 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.