Samson Mainspring No. 7051 for A.S. calibers 984 & 1002 - Alloy

Samson No. 7051 alloy mainspring for A.S. caliber 984, 1002 and Gruen 580, 581 & 582 movements plus perhaps others, new in envelope. See images for precise mainspring specifications. I likely have several of these so the on you get may differ slightly from the images. 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.