Patek Philippe Caliber CH 29-535 PS Q

Manufacturer	Patek Philippe
Caliber Number	CH 29-535 PS Q
Movement Type	Mechanical, manual-wind, chronograph
Diameter	32mm
Height	7mm
Jewel Count	33 jewels
Total Parts	456
Beat Rate / Frequency	28,800 bph / 4 Hz
Lift Angle	Unconfirmed
Power Reserve	Up to 65 hours without using the chronograph
Balance Wheel	Gyromax
Balance Spring	Breguet style
Anti-Shock Device	Incabloc
Hand Count	6
Functions	Central hours; central minutes; central chronograph seconds; small seconds at 9:00; 30 minutes chronograph counter at 3:00; pointer date subdial at 6:00; moonphase indicator at 6:00; day/night indicator at 4:30; day of the week window at 11:00; month window at 1:00; leap year indicator at 4:30
Hacking Seconds?	No
Country of Manufacture	Switzerland, Swiss made
Known Models	Patek Philippe Grand Complications (Ref: 5207J-001, 5207/1R-001, 5207P-014) (Add your watch to the comments below…)

The Patek Philippe caliber CH 29-535 PS Q is a mechanical chronograph with a triple-date perpetual calendar complication.

In Patek Philippe’s own words:

“The caliber CH 29-535 PS Q movement combines traditional design with six patented innovations and an extremely slender calendar mechanism.” –Source

Also this:

“Caliber CH 29-535 PS Q is distinguished by its traditional architecture, combined with six patented innovations relating to the chronograph, as well as by its exceptionally thin calendar mechanism.” –Source

Dial Side:

This diagram points out the location of the complications:

Watches with this calibre:

Additional Resources:

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