Omega Seamaster Planet Ocean Automatic Chronograph with black dial and luminous index markers including Arabic numeral at twelve o'clock; unidirectional rotating bezel featuring black ceramic insert; analog display showing hours, minutes, seconds via subdials (30-minute, second); date function visible through a sapphire crystal caseback or side aperture depending on the model, but typically central for this reference. For the specific Ref 232.30.46.51.01.001: stainless steel case and bracelet; black ceramic bezel insert with metal outer ring (uni-directional); luminous silver-tone hands; date display at six o'clock position via a central subdial; automatic movement designation Caliber 9300, certified chronometer; scratch-resistant sapphire crystal; screw-down winding/crown; typically includes the Omega logo on the flange. Water resistant to 600 meters (2000 feet).