The product is a vintage 39.6mm Swiss Cretets Watch Co. pocket watch movement by the Elgin Watch Company. Made in the United States, this mechanical (manual) movement is made of steel and is not currently running. It is not a modified item. This pocket watch movement is a unique and historical piece that would be ideal for watch collectors or enthusiasts looking to repair or restore a vintage timepiece. 17 jewels not working please see pictures sold as is