The Grand Complication Reference 5316 takes on a new contemporary look with a platinum case and a blue metallized sapphire crystal dial with a black-gradient rim. Manually wound R TO 27 PS QR combines a minute-repeater, a tourbillon and a perpetual calendar with retrograde date display and moon-phase indication – five of the most sought-after complications among connoisseurs. The original face of this new model is enhanced by a navy blue embossed calfskin strap with a fabric pattern, contrasting cream-colored stitching and a platinum fold-over clasp.

Sapphire crystal with blue metallization and black-gradient rim, gold applied faceted “obus” hour markers. Platinum. Diameter: 40.2 mm. Height: 13.23 mm. Humidity- and dust-protected only (not water resistant). Interchangeable solid and sapphire crystal case backs. Calfskin, embossed with fabric pattern, hand-stitched, navy blue. Fold-over clasp. Minute repeater with two classic gongs. Tourbillon. Perpetual calendar with retrograde date hand. Minute repeater with two classic gongs. Tourbillon. Perpetual calendar with retrograde date hand. Day, month and leap year in apertures. Moon phases. Small seconds.

Minute repeater. Tourbillon. Perpetual calendar with retrograde date hand. Third wheel in gold. Moon phases. Diameter: 28 mm. Thickness: 8.64 mm. Number of parts: 506. Bridges: 13. Jewels: 28. Power reserve: min. 38 hours - max. 48 hours. Balance: Gyromax^®. Frequency: 21,600 semi-oscillations/hour (3 Hz). Balance spring: Breguet. Hallmark: Patek Philippe Seal.