Patek Phillippe Grand Perpetual Calendar

The chronograph has always featured prominently in the vast range of complications in which Patek Philippe has demonstrated its virtuosity. For over 175 years, the manufacture has created a wealth of different models, many of which count among the timepieces most admired and sought after by connoisseurs and collectors.

WATCH
Manually wound mechanical movement. Caliber CH 29‑535 PS Q. Day, month, leap year and day/night indication in apertures. Date by hand.

DIAL
Dial: black lacquered, applied gold hour markers and 1 baguette diamond at 12 o’clock.

CASE
Platinum. Interchangeable full back and sapphire-crystal case back. Water resistant to 30m. Case diameter: 41 mm. Height: 12.7 mm.

GEMSETTING
Bezel and lugs set with 58 baguette diamonds (~3.63 ct). Fold-over clasp set with 22 baguette diamonds (~0.97 ct).

BRACELET / STRAP
Alligator strap with square scales, hand-stitched, shiny black. Fold-over clasp set with 22 baguette diamonds (~0.97 ct).

Chronograph. Center chronograph hand and instantaneous 30-minute counter. Perpetual calendar with day/night indication. Small seconds. Moon phases. 
Diameter: 32 mm
Height: 7 mm
Parts: 456
Jewels: 33
Power reserve: With the chronograph disengaged: min. 55 hours - max. 65 hours
Balance: Gyromax®
Vibrations/hour: 28 800 (4 Hz)
Balance spring: Breguet
Hallmark: Patek Philippe Seal