Geneva Watch Material DURA-LOY Mainspring for Wittnauer 5S, 5W - Alloy

Geneva Watch Material DURA-LOY mainspring for Wittnauer caliber 5S, 5W movements and likely others, 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.