Nautilus Automatic Winding Moon Phase 40mm Blue Dial 5712/1A-001

Description

The Patek Philippe Nautilus Automatic 40 mm Moon Phase (Ref. 5712/1A‑001) is an exquisite embodiment of luxury and technical finesse. Crafted in stainless steel with a rich blue embossed dial, this model features a moon phase display, power reserve indicator, and small seconds—delivering a sophisticated blend of sporty elegance and horological complexity.

Overview

Launched in October 2006 to mark the 30th anniversary of the Nautilus, the 5712/1A‑001 is a rare and coveted evolution of Gérald Genta’s iconic 1976 design . Retaining the classic 40 mm “jellyfish” case with its rounded octagonal bezel, this iteration introduces refined detailing and asymmetrical dial layout that have made it a collector favorite.

Design and Craftsmanship

The stainless steel case, measuring 40 mm in diameter and just 8.52 mm thick, combines brushed and polished finishes for a refined aesthetic. The horizontally embossed blue dial features:

• A moon phase and date subdial at 7 o’clock, framed by precise Gregorian calendar display.
  
  

• A finger-shaped power reserve gauge at 10 o’clock.
  
  

• A small seconds subdial at 4 o’clock.
  Accompanied by luminous-gilded hands and applied hour markers, these details uphold the Nautilus legacy with modern sophistication.
  
  

Movement and Performance

Powered by the ultra-thin Patek Philippe in-house Caliber 240 PS IRM C LU, this micro-rotor automatic movement incorporates 29 jewels and delivers approximately 38–48 hours of power reserve. The winding rotor is crafted in 22K gold and visible through the sapphire caseback, completing the watch's refined engineering .

Features and Complications

• Moon Phase & Date: Elegant representation paired with a date pointer.
  

• Power Reserve Indicator: Efficiently displays remaining autonomy.
  

• Sub-Seconds Dial: Adds visual and functional depth.
  

• Water Resistance: Up to 60 m (6 ATM), suitable for everyday use.
  

• Crystal: Scratch-resistant sapphire on both front and display caseback .
  
  

Specifications

Case Material, Diameter, Thickness, and Finish

• Material: Stainless steel with brushed and polished surfaces
  

• Diameter: 40 mm (10–4 o’clock)
  

• Thickness: 8.52 mm
  

• Bezel: Rounded octagonal with polished bevels
  

• Crown: Screw-down for enhanced water resistance
  

• Water Resistance: 60 m / 6 bar
  
  

Dial Color, Markers, Hands, and Distinctive Elements

• Color: Sunburst blue horizontal embossing
  

• Hour Markers: Applied luminous-gilded baton indices
  

• Hands: Gilded baton with luminescent fill
  

• Unique: Asymmetrical layout with moon-phase, sub-seconds, and power reserve; discreet "Patek Philippe" signature
  
  

Bracelet/Strap Material, Width, Clasp Type, and Adjustability

• Material: Matching stainless steel bracelet
  

• Clasp: Patek Philippe fold-over deployant with safety latch
  

• Fit: Adjustable links, tailored for a secure, seamless fit
  
  

Movement Caliber, Power Reserve, Frequency, and Jewels

• Caliber: Patek Philippe 240 PS IRM C LU (automatic, micro-rotor)
  

• Jewels: 29
  

• Power Reserve: Approx. 38–48 hours, shown on-dial

• Functions: Hours, minutes, small seconds, date, moon phase, power reserve