Patek Philippe Nautilus Travel Time Chronograph (59901A001) self – winding automatic watch, features a 40.5mm stainless steel case surrounding a black gradated dial on a stainless steel bracelet with folding buckle. Functions include hours, minutes, small seconds, day/night indicator, flyback chronograph and gmt/world time. This watch comes with the original box. We back this watch with a 2-Year WatchBox warranty!