Automatic mechanical movement Calibre El Primero 3610, silver-tone stainless steel case and bracelet, fixed silver-tone bezel, green-toned sunray dial with silver-toned counters at 4-5 o'clock, rose gold-tone hands and index hour markers, minute markers on the tachymetric track around the outer rim. Analog dial type features day of week display at 10 o'clock position, month indication at 2 o'clock position, date window between 4 and 5 o'clock positions. Includes central chronograph hand making one turn in ten seconds (tenth-second function), minute counter at 6 o'clock, second counter at 3 o'clock, small seconds subdial at nine o'clock. Moonphase indicator present. Sapphire crystal provides scratch resistance for the dial. Water resistant up to 50 meters / 165 feet depth.