Introduction

5740/1G
- Nautilus
Self-winding

The first Grand Complication in the Nautilus collection, the Reference 5740/1 Nautilus perpetual calendar, offers a distinctive blend of sports appeal and technical sophistication. Thanks to the famous ultra-thin self-winding caliber 240 Q movement, the case (water resistant to 60 m) is remarkably svelte, making this watch Patek Philippe’s thinnest perpetual calendar. The bracelet is equipped with a new fold-over clasp providing optimized security.


Ultra-thin mechanical self-winding movement. Caliber 240 Q. Perpetual calendar. Moon phases. Day, date, month, leap year and 24-hour indication by hands. Dial: Blue sunburst, gold applied hour markers with luminescent coating. White gold. White gold. Screw-down crown. Sapphire-crystal case back. Water resistant to 60 m. Diameter (10-4 o’clock): 40 mm. Height: 8.42 mm.

Price:

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Caliber

240 Q
Self-winding

Patek Philippe Caliber 240 Q - Front
Front Back

240 Q
Self-winding

Perpetual calendar. Day, date, month, leap year and 24-hour indication by hands. Moon phases. Diameter: 27.5 mm. Height: 3.88 mm. Parts: 275. Bridges: 8. Jewels: 27. Power reserve: min. 38 hours, max. 48 hours. 22K gold off-center mini-rotor. Balance: Gyromax®. Vibrations/hour: 21 600 (3 Hz). Balance spring: Spiromax®. Hallmark: Patek Philippe Seal. Patent: CH 595 653.

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 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.
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

Press release

Patek Philippe Nautilus & Aquanaut

With the first perpetual calendar in the Nautilus collection and the first chronograph in the Aquanaut range, Patek Philippe has further enhanced the appeal of its two refined, sporty watch families. The debuts introduce new patented fold-over clasps that stand out with improved safety features.

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