Marco Marshalloy Mainspring 3247M for AS 1298, GP 13, Venus 1221 - Alloy

Marco Marshalloy Mainspring 3247W for AS 1298, Girard Perregaux 13, Venus 1221 caliber movements, white alloy, new in envelope. See images for all calibers supported and 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.