Thomas Earnshaw Men's ES-8006-04 Longitude Analog Display Automatic Self Wind Black Watch The Longitude Collection pays tribute to the years of innovation and scientific thought in solving the problem of how to measure longitude with an exquisite self-winding automatic skeleton watch with an exposed balance wheel Automatic Skeleton Movement Black Dial with Gold Index, Dual Time, Moonphase, Hardened Mineral Lens Croco pattern genuine leather strap, stainless steel case and buckle Water resistant to 165 feet (50 M): suitable for swimming and showering