| 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:
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