Patek Philippe Grand Complications Split-Seconds Chronograph Perpetual Calendar 40mm 18K White Gold Sunburst Navy Blue Dial (Ref# 5204G-010)

40mm fully polished white gold case with a thickness of 14.3mm, interchangeable solid and sapphire crystal case backs, crown with integrated split-seconds pusher, concave bezel, sunburst navy blue dial with white gold applied faceted "obus"-style hour markers, tachymeter scale printed in white, 18K gold dial plate and white gold faceted dauphine-style hands with white luminescent coating, manually wound Caliber CHR 29-535 PS Q measuring 32mm in diameter and 8.7mm thick with 496 parts and 34 jewels, Gyromax® balance and Breguet balance spring operating at 28,800 semi-oscillations per hour (4 Hz), split-seconds chronograph with two column wheels, horizontal clutch and instantaneous 30-minute counter, perpetual calendar with day, month, leap year and day/night indication in apertures, date by hand, moon phases and small seconds, power reserve with the chronograph disengaged of min. 55 hours to max. 65 hours, navy blue composite strap with fabric pattern and contrasting red stitching (originally fitted) plus an additional shiny dark blue alligator leather strap with square scales and contrasting red stitching, white gold patented triple-blade fold-over clasp. Water-resistant to 30 metres / 100 feet. Patek Philippe Seal certified.