Ulysse Nardin Marine Chronometer Blue Dial Automatic Mens Watch 1503-150-63. Stainless steel and titanium case with a blue alligator leather strap. Fixed stainless steel bezel. Blue metallic dial with silver-toned hands and Arabic numeral hour markers. Minute markers around the outer rim. Automatic movement with a 48 hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Skeleton case back. Case diameter: 43 mm. Case thickness: 15.2 mm. Round case shape. Band width: 20.3 mm. Band length: 8 inches. Fold over push button clasp. Water resistant at 100 meters / 330 feet. Functions: chronograph, date, hour, minute, second.