Omega Seamaster Planet Ocean 188.8.131.52.01.001. Automatic co-axial movement Omega caliber 8500. 45.5mm diameter steel case. Water resistant to 600 meters with helium escape valve (top left). Black dial with applied luminous hour markers and arabic numerals. Power reserve 60 hours. Grey ceramic uni-directional bezel. See through sapphire crystal back. Black rubber strap with Omega folding clasp. Comes with additional Steel bracelet with folding clasp. Box and Papers.