Introduction

5204R
- Grand Complications
Manual winding

The split-seconds chronograph is one of the three most difficult complications to master, alongside the tourbillon and the minute repeater. It takes a highly sophisticated mechanism to control the two chronograph hands, one of which may be stopped to measure an intermediate or lap time or retain a reference time while the other continues its course unaffected, even by fractions of a second. When released again, the split-seconds hand instantly catches up with the primary hand and the two stacked hands move on together.


Manually wound mechanical movement. Caliber CHR 29-535 PS Q. Split-Seconds chronograph. Instantaneous 30-minute counter. Perpetual calendar. Moon phases. Day, month, leap year and day/night indication in apertures. Date by hand. Seconds subdial. Dial: silvery opaline, applied gold hour markers with luminescent coating. 18K gold dial plate. Alligator strap with square scales, hand-stitched, shiny chocolate brown, fold-over clasp. Fold-over clasp. Case: rose gold. Interchangeable full back and sapphire-crystal case back. Water resistant to 30 m. Case diameter: 40.2 mm. Height: 14.3 mm.

Price: 250'000 CHF *

*Current price including VAT applicable at our Patek Philippe Salons in Geneva, Switzerland. Authorized retailers may determine the price to their customers.

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Other versions

Caliber

CHR 29-535 PS Q
Manual winding

Front Back

CHR 29-535 PS Q
Manual winding

Split-seconds chronograph, 30-minute counter. Perpetual calendar with day/night indication. Diameter: 32 mm. Height: 8.7 mm. Parts: 496. Bridges: 12. Jewels: 34. Power reserve: min. 55 hours - max. 65 hours. Balance: Gyromax®. Vibrations/hour: 28 800 (4 Hz). Balance spring: Breguet. Hallmark: Patek Philippe Seal.

Settings

How to set the moonphase indicator?

fullmoon calendar
fullmoon calendar
fullmoon calendar
fullmoon calendar
fullmoon calendar
fullmoon calendar
fullmoon calendar
A disc, decorated with golden stars and two golden moons against a blue or white background representing the sky, rotates within an aperture. The disc is cut from a wafer of corundum crystal (sapphire).

Gold was condensed onto the disc by means of a vacuum process through a photographic mask to create the shape of the moons and stars.  The aperture is cut at its upper edge in order to represent the lunar cycle.

During the first days of each lunation, the leading edge of a golden moon becomes visible as a crescent on the right of the aperture and appears to wax as it emerges beyond the curved edge of the aperture representing the lunar terminator.

Half way through the lunation, the moon appears full. It then wanes as it disappears behind the terminator on the left of the aperture.

As the moon vanishes, the second moon on the disc is ready to appear on the right.

How to set the leap year indicator

The leap year indicator informs you about the year cycle: leap year or non leap year. Leap years are identified with the Roman numeral IV or the Arabic numeral 4.
Please select a year and press "Calculate" to find the year cycle.
2017
Year I
2018
Year II
2019
Year III
2020
Year IV
2021
Year I
2022
Year II
2023
Year III
2024
Year IV
2025
Year I
2026
Year II
2027
Year III
2028
Year IV

Savoir faire

Attention to details
Movement components

The detailed manual work carried out on the internal components of a watch is where hand-finishing reaches a rare pinnacle. The Patek Philippe Seal requires that movements, as with the rest of the watch, are made using advanced technologies, artisanal know-how, authenticity, and exemplary finishing.

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