Stainless steel case with a blue (crocodile) leather strap. Fixed stainless steel bezel. Blue dial with silver-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 6 o'clock position. Two sub-dials displaying: 12 and 24 hour. Automatic movement with a 60 hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Transparent case back. Case diameter: 43 mm. Round case shape. Band width: 21.6 mm. Band length: 8.5 inches. Fold over clasp with a safety release. Water resistant at 150 meters / 500 feet. Functions: chronograph, date, hour, minute, second. Luxury watch style. Watch label: Swiss Made. Item Variations: 231 13 43 52 03 001, 231-13-43-52-03-001, 231/13/43/52/03/001, 23113435203001. Omega Seamaster Aqua Terra Chronograph GMT Automatic Chronometer Blue Dial Mens Watch 231.13.43.52.03.001.