Patek Philippe Ref. 5740/1G-001 Nautilus Perpetual Calendar Overview
The Patek Philippe Ref. 5740/1G-001 Nautilus Perpetual Calendar is the first perpetual calendar ever introduced in the Nautilus family and remains one of the most elegant grand complications within the brand’s contemporary catalog. As part of the iconic Nautilus lineage, this reference combines the sport-luxury identity of the case with one of the most traditional high complications in watchmaking. The result is a model that blends thinness, mechanical refinement, and recognizable Nautilus aesthetics in a perfectly balanced form.
Ultra-Thin Architecture and Case Design
Measuring just 8.42 mm thick, the Ref. 5740/1G-001 is the thinnest perpetual calendar ever produced by Patek Philippe. Its 40 mm white gold case maintains the rounded octagonal contour inspired by ship portholes, a hallmark of the Nautilus design since 1976. The blue dial with horizontal grooves enhances the signature sporty character, while the white gold baton hands offer excellent legibility. The perpetual calendar correctors are seamlessly integrated into the case edges, preserving the original Nautilus profile without compromising functionality.
Display Layout and Perpetual Calendar Functions
The perpetual calendar layout is both symmetrical and intuitive. The subdial at 3 o’clock indicates the month and leap year cycle. At 6 o’clock, the date display shares space with the moon phase. The 9 o’clock subdial features both the day of the week and a 24-hour indicator. This well-balanced arrangement allows the wearer to read all calendar indications at a glance while maintaining the expected visual harmony of a Patek Philippe grand complication.
Caliber 240 Q: Micro-Rotor Excellence
The Ref. 5740/1G-001 is powered by the Caliber 240 Q, an ultra-thin self-winding movement using a 22k gold micro-rotor. Operating at 21,600 vph, it delivers a power reserve of 38 to 48 hours. The perpetual calendar module is optimized for thinness, bringing the total movement height to only 3.88 mm. Through the sapphire caseback, the wearer can admire the chamfered edges, Geneva striping, and the gold Patek Philippe Seal.
Bracelet Engineering and Wearing Comfort
To increase comfort and security, the white gold bracelet features a redesigned folding clasp with four independent safety locks. This improves opening and closing precision while preventing accidental release. Despite being crafted from solid white gold, the bracelet remains surprisingly comfortable due to the smooth articulation of its links.
Collecting Appeal and Market Significance
The combination of the Nautilus case and the perpetual calendar complication has long been a dream pairing for many Patek Philippe collectors. Upon its release in 2018, the model quickly gained recognition as one of the standout perpetual calendar watches of the year. The ultra-thin profile enhances its practicality, making it a rare blend of complication, wearability, and iconic design. With increasing global interest in Nautilus references, the 5740/1G-001 continues to be considered a future classic.
For additional technical information, please visit:
Patek Philippe Official Website.
Patek Philippe Ref. 5740/1G-001 Nautilus Perpetual Calendar Specifications
White gold case, 40 mm diameter, 8.42 mm thickness, sapphire crystal, blue dial, white gold hands, Caliber 240 Q automatic movement, 21,600 vph, 48-hour power reserve, white gold bracelet with folding clasp, water resistance 60 m. Complications: perpetual calendar, moon phase, 24-hour indicator.
