Authentic Patek Philippe Grand Complications Split-Seconds Chronograph, model 5204G-001. Features an olive green dial with luminous white gold stick hour markers and minute markers along the outer bezel, moonphase display, date function between four and twelve o'clock position on a sub-dial. Powered by Calibre CHR 29-535 PS Q movement in polished 18K white gold case. Includes day-night indicator, power reserve of approximately sixty-five hours, small seconds sub-dial displaying elapsed time during chronograph operation. Features a folding clasp closure and sapphire crystal glass for scratch resistance. Round shaped case measuring forty millimeters in diameter with a thickness of fourteen point thirty (14.30) mm. Water resistant up to 30 meters or one hundred feet depth.