A jewelry version of a Patek Philippe classic, Reference 5271/12P-010 is lit up by 80 baguette-cut rubies (5.25 cts) set on the bezel, the lugs and the fold-over clasp. The intense color of the gems is echoed by the lacquered red dial with black-gradient rim and the shiny black alligator strap with contrasting stitching. The CH 29-535 PS Q caliber is distinguished by its traditional architecture (manually wound, column wheel, toothed-wheel horizontal clutch), combined with six patented innovations in the chronograph, as well as its exceptionally slim calendar mechanism.

Laquered red, black-gradient rim, gold applied hour markers. Platinum. Diameter: 41 mm. Height: 12.7 mm. Water-resistant to 30 m. Interchangeable solid and sapphire crystal case backs. Alligator leather with square scales, hand-stitched, shiny black. Fold-over clasp set with rubies. 58 baguette-cut rubies: 4.11 cts. (bezel and lugs). 22 baguette-cut rubies: 1.14 ct. (clasp). Total of 80 baguette-cut rubies (5.25 cts). Perpetual calendar. Chronograph. Central chronograph hand. Instantaneous 30-minute counter. Perpetual Calendar. Day, month, leap year and day/night indication in apertures. Date by hand. Moon phases. Small seconds. Chronograph. Central chronograph hand. Instantaneous 30-minute counter.

Chronograph. Central chronograph hand. Instantaneous 30-minute counter. Perpetual calendar. Day, month, leap year and day/night indication in apertures. Date by hand. Moon phases. Small seconds. Diameter: 32 mm. Thickness: 7 mm. Number of parts: 456. Jewels: 33. Power reserve with the chronograph disengaged: min. 55 hours - max. 65 hours. Balance: Gyromax^®. Frequency: 28,800 semi-oscillations/hour (4 Hz). Balance spring: Breguet. Hallmark: Patek Philippe Seal.