Split-seconds monopusher chronograph. 60-minute counter. Perpetual calendar. Day, month, leap year and day/night indication displayed in apertures. Date indicated by hand. Moon phases. Small seconds. Diameter: 27.3 mm. Height: 7.3 mm. Number of parts: 476. Bridges: 12. Jewels: 31. Power reserve with the chronograph disengaged: min. 38 hours - max. 48 hours. Balance: Gyromax®. Vibrations/hour: 21 600 (3 Hz). Balance spring: Breguet. Hallmark: Patek Philippe Seal.

5 other watches in the library run the Patek Philippe CHR 27-525 PS Q.

Patek Philippe - 5372P-001 Perpetual Calendar Split-Seconds Chronograph 5372 Platinum / Blue

Ref. 5372P-001 · 38.3 mm

Patek Philippe - 5951P-001 Perpetual Calendar Split-Seconds Chronograph 5951P Black / Silver

Ref. 5951P-001 · 37 mm

Patek Philippe - 5951/500P-001 Perpetual Calendar Split-Seconds Chronograph 5951/500P

Ref. 5951/500P-001 · 37 mm

Patek Philippe - 5951P-012 Perpetual Calendar Split-Seconds Chronograph 5951P Silver

Ref. 5951P-012 · 37 mm