Eliassof Bros & Co. "The Fulton" Mainspring for 3/0s Hampden No. 9696 - Steel

Eliassof Bros & Co. "THE FULTON" Wine Color Mainspring for Hampden 3/0s movements, such as the Molly Stark, the Diadem & Model 400, Factory No. 9696, steel, new in envelope. See images for further details. These were only marked Eliassof Bros & Co. on the box, which I no longer have. In case you don't know the significance of Wine Color - it's the place where heat is removed during the tempering process that creates the color. I specialize is hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.