Patek Philippe Annual Calendar Chronograph 5960P-001 Platinum with Grey Dial

The Patek Philippe Annual Calendar Chronograph 5960P-001 is a true milestone in modern watchmaking, blending timeless elegance with groundbreaking technical achievement. When introduced in 2006, this reference was celebrated as the very first automatic chronograph entirely developed in-house by Patek Philippe, and it remains one of the most significant complications in the brand’s modern history.

The 40.5 mm platinum case carries both weight and prestige, its cool sheen perfectly complementing the understated sophistication of the grey sunburst dial. The dial itself is a showcase of Patek Philippe’s ability to harmonize complexity and legibility. Across the upper half, three neatly arranged apertures display the day, date, and month, forming the core of the annual calendar function, which only requires adjustment once per year at the end of February.

At 6 o’clock, a distinctive monocounter subdial organizes the chronograph’s 12-hour and 30-minute counters alongside a running seconds register, elegantly accented with red and blue indicators. A subtle power reserve indicator rests just beneath 12 o’clock, ensuring the wearer always knows the state of the watch’s impressive movement.

Inside beats the Caliber CH 28-520 IRM QA 24H, a self-winding mechanical marvel that combines an annual calendar with a flyback chronograph. Featuring a column-wheel mechanism and vertical clutch system, the chronograph engages with unmatched smoothness and reliability. The 21K gold central rotor, visible through the sapphire exhibition caseback, provides efficient winding and a power reserve of approximately 55 hours

Calendar Windows: Day, date, and month displayed in apertures across the top half of the dial

Subdial: Combined 12-hour and 30-minute chronograph register with running seconds

Power Reserve Indicator: Located below 12 o’clock

Complications: Annual calendar, day/date/month, flyback chronograph, power reserve indicator, 24-hour display

Rotor: 21K gold central rotor, visible through sapphire caseback