Introduction

5204/1R
- Grand Complications
Manual winding

Watch
Manually wound mechanical movement. Caliber CHR 29‑535 PS Q. Day, month, leap year and day/night indication in apertures. Date by hand.
Dial
Ebony-black opaline dial, gold applied hour markers with luminescent coating. 18K gold dial plate.
Case
Case: rose gold. Interchangeable full back and sapphire-crystal case back. Water-resistant to 30m. Case diameter: 40.2 mm. Height: 14.3 mm.
Bracelet / Strap
Gold bracelet. Fold-over clasp.
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Patek Philippe Ref. 205.9089R5-001
205.9089R5
Rose Gold
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Other versions

5204/1R-001
Rose Gold
5204R-001
Rose Gold

Caliber

CHR 29-535 PS Q
Manual winding

Patek Philippe Caliber CHR 29-535 PS Q - Front
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: With the chronograph disengaged: min. 55 hours - max. 65 hours. Balance: Gyromax®. Vibrations/hour: 28 800 (4 Hz). Balance spring: Breguet. Hallmark: Patek Philippe Seal.

Patek Philippe Seal

Settings

How to set the moonphase indicator?

Month
Day
Year
Calculate
Reset
Calculate
Reset
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 left 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 right of the aperture.

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

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.
Year
Calculate
Reset
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

Other models

5372P-010
Platinum
5372P-001
Platinum

Savoir faire

Attention to details
Polishing

The humble art of polishing is one of the most important finishing techniques. It accentuates the case shape, highlighting each distinct part and visually bringing together gemsetting, guilloché work, and engraving into a shining, unified whole.

Cases and bracelets

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