A yellow gold-tone 18kt yellow gold round case with a brown alligator band. Fixed yellow gold-tone bezel on white dial featuring Arabic numeral hour markers and minute markers around the outer rim; yellow gold-tone hands indicating analog time. Equipped with perpetual calendar, three sub-dials (60 second, 30 minute, date/moonphase), column wheel chronograph movement, leap year complication, day/night indicator, and moon phase display. Powered by Patek Philippe Calibre CH 29-535 PS Q hand-wound mechanical movement with 34 jewels, 496 parts, beating at 28800 vph, offering a power reserve of about 65 hours. Secured scratch-resistant sapphire crystal; screw-down winding crown and transparent case back. Water resistant to 30 meters / 100 feet. Belongs to the Grand Complications Series with Swiss Made label.