Plymouth Ply-Power Mainspring for ETA caliber 1080, 1081 - Alloy

Plymouth alloy mainspring for ETA caliber 1080, 1081 movements, and perhaps others as well, 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 marginally adequate job of representing the item.