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The Encyclopedia of Horology

Wristwatch · Perpetual calendar wristwatch

2005 Patek Philippe Perpetual Calendar Moonphase 18K Rose Gold (Ref. 5040R)

Partially verified

This 2005 Patek Philippe Perpetual Calendar wristwatch, reference 5040R, features an 18K rose gold tonneau-shaped case. The timepiece is powered by the Patek Philippe Caliber 240/114, an automatic movement equipped with a micro-rotor. The dial is silver with Arabic numerals and includes a perpetual calendar complication displaying date, day, month, leap year, and moonphase, along with a 24-hour indicator in a sub-dial. The watch is presented on its original black alligator leather strap fastened by an 18K rose gold Patek Philippe deployant clasp. The auction description reports the watch includes its original Certificate of Origin. The case retains the original crown with the Patek Philippe cross, and the movement remains functional.

Front view of the Patek Philippe 5040R showing the silver dial, moonphase, and sub-registers.
Front view of the Patek Philippe 5040R showing the silver dial, moonphase, and sub-registers. — Craft & Tailored. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
craftandtailored.com
Category
Wristwatch · Perpetual calendar wristwatch
Maker / attribution
Patek Philippe
Reference
5040R
Catalogue / lot identifier
PP5040R
Source-reported date
2005
Source-reported place
Switzerland
Source-reported serial
31XXXXX / 42XXXXX

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case and Dial

The watch features a tonneau-shaped case crafted from 18K rose gold. The exterior displays the factory dimensions and curves, with the auction description noting light signs of use throughout the metal surfaces. The crown is original to the watch and bears the Patek Philippe cross insignia. The sapphire crystal is reported as free of scratches or wear.

The dial is finished in brushed silver with applied Arabic numerals. It contains several sub-registers to display the perpetual calendar functions, including day, month, leap year, and a moonphase aperture. A 24-hour indicator is positioned within the left sub-dial, characterized by a two-tone appearance. The hands are of the feuille style, and the dial layout remains consistent with the original factory specifications.

Evidence for this section
  • “The wonderful 18K rose gold tonneau style case retains its original factory curves”
  • “The case retains its original crown signs with the Patek Philippe cross.”
  • “The original brushed silver with Arabic numerals is in flawless condition”
  • “The 24-hour indicator located in the left sub-dial features a very subtle two-tone effect”

Movement and Functionality

At the core of the reference 5040R is the Patek Philippe Caliber 240/114. This is an automatic movement utilizing a micro-rotor design, which allows for a slim case profile. The movement facilitates the perpetual calendar complications, which track time, date, day, month, leap year, and moon cycle.

The auction description reports that the movement is currently functioning and keeping time. However, the record states that the specific service history of the watch remains unknown.

Evidence for this section
  • “At its heart beats the legendary Caliber 240/114, an ultra-thin automatic movement”
  • “This micro-rotor caliber not only allows for the watch’s elegant slimness”
  • “The watch is keeping time and functioning correctly, though the previous service history is unknown.”

Accessories and Provenance

The watch is accompanied by its original Certificate of Origin from Patek Philippe. It is fitted with its original black alligator leather strap and an 18K rose gold Patek Philippe deployant clasp.

The documentation provided by the seller confirms the reference as 5040R, produced in 2005. No additional historical ownership records are provided in the source text.

Evidence for this section
  • “The watch comes with its original Patek Philippe Certificate of Origin.”
  • “The watch comes supplied on its original black alligator Patek Phillipe strap with the original Patek Philippe 18K rose gold deployant clasp.”

Open research questions

  • What is the specific production month of this timepiece?
  • Has the perpetual calendar mechanism been tested for long-term accuracy by an independent horologist?

Source evidence

Recorded claims and source quotations for 2005 Patek Philippe Perpetual Calendar Moonphase 18K Rose Gold (Ref. 5040R)
FieldSource-reported valueSource quotation
BrandPatek Philippe“Brand Patek Philippe”
Reference5040R“Model 5040R”
Case Material18K Rose Gold“Material 18K Rose Gold”
MovementCaliber 240/114“At its heart beats the legendary Caliber 240/114”
Case ShapeTonneau“unconventional tonneau-shaped case”
DialBrushed silver“The original brushed silver with Arabic numerals”
AccessoriesCertificate of Origin“The watch comes with its original Patek Philippe Certificate of Origin.”
CrownOriginal crown“The case retains its original crown signs with the Patek Philippe cross.”

Visible details

  • Tonneau-shaped 18K rose gold case
  • Brushed silver dial with Arabic numerals
  • Moonphase display at the six o'clock position
  • Push-piece corrector on the side of the case

Research qualifications

  • Previous service history is unknown
  • Full serial number is partially redacted in source

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

ساعت Patek Philippe Perpetual Calendar Moonphase 18K RG (Ref. 5040R) مدل ۲۰۰۵

Reviewed 2026-11-02 · Record 88d08a5236

Terms in this record

Glossary explanations for terms named in this object’s record.

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