This is a wristwatch that has been re-cased from an Omega pocket watch from the 1910s-1920s. The case back is skeleton, allowing you to see the movement of the rare mechanism from the 1910s-1920s. This watch was purchased from a seller specializing in remade watches on auction. The watch is sold as the watch body only. (No strap) ❗️As shown in the 4th image, there is an original chip in a part of the dial at the 9 o'clock position.