The Grandmaster Chime is the most complicated Patek Philippe wristwatch ever made. It boasts twenty complications, a reversible case and two independent dials and six patented innovations.
The development, production and assembly process covered a staggering 100,000 hours.
the Star Caliber 2000, composed of 1,118 parts and featuring a total of 21 complications, joined the exceptional 'Supercomplications' collection.
The beating heart of the Grandmaster Chime is the caliber 300 movement that consists of 1,366 individual parts.
Display of day and month. Date display (on both dials). Leap year cycle. Four-digit year display. 24-hour and minute subdial. Crown position indicator (winding [R], alarm setting [A], timesetting [H]). Moon phases. Diameter: 37 mm. Height: 10.7 mm. Number of parts: 1,366. Jewels: 108. Movement power reserve: 72 hours. Balance: Gyromax. Frequency: 25,200 semi-oscillations/hour (3.5 Hz). Balance spring: Spiromax. Hallmark: Patek Philippe Seal.