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The Encyclopedia of Horology

Wristwatch · Perpetual calendar

Patek Philippe Perpetual Calendar Moonphase Ref. 5040P

Partially verified

This Patek Philippe perpetual calendar watch, identified as Reference 5040P, features a platinum tonneau-shaped case measuring 35.5 millimeters. It is powered by the Caliber 240 Q automatic movement with a micro-rotor. The timepiece displays a silver-brushed dial with Breguet-style numerals and multiple complications, including a perpetual calendar that tracks the date, day, month, leap year, and moonphase, complemented by a 24-hour indicator in a sub-dial. The watch is presented on a black alligator leather strap equipped with a platinum Patek Philippe deployant clasp. The design marks a departure from traditional round silhouettes by utilizing a tonneau case shape. The auction description reports that the watch is keeping time and functioning, with an Extract from the Archive ordered from the manufacturer. It represents an iteration of the perpetual calendar complication introduced by the maker in 1996.

Front view of the Patek Philippe Ref. 5040P showing the tonneau case and perpetual calendar dial layout.
Front view of the Patek Philippe Ref. 5040P showing the tonneau case and perpetual calendar dial layout. — Craft & Tailored. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
craftandtailored.com
Category
Wristwatch · Perpetual calendar
Maker / attribution
Patek Philippe
Reference
5040P
Catalogue / lot identifier
PP5040P
Source-reported date
1990s
Source-reported place
Not established
Source-reported serial
47XXXXX / 36XXXXX

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 Construction

The Reference 5040P is characterized by its tonneau-shaped case constructed from platinum. This design deviates from traditional round profiles and retains the manufacturer's crown, which bears the Patek Philippe cross. The case back is reported to show gentle wear, while the sapphire crystal remains free of scratches.

The brushed silver dial features applied Breguet numerals. The layout includes a perpetual calendar with a 24-hour indicator situated at the left sub-dial. The moonphase disc is described as being in flawless condition. The 24-hour indicator displays a two-tone aesthetic, where the bottom half of the circle shows a golden brown finish.

Evidence for this section
  • “The excellent platinum cast tonneau style retains its original factory curves”
  • “The original brushed silver with Breguet numerals is in flawless condition”
  • “The case retains its original crown signs with the Patek Philippe cross.”

Movement and Functionality

This watch utilizes the Caliber 240 Q movement. This is an automatic, ultra-thin caliber equipped with a micro-rotor, a feature noted by the manufacturer for its ability to maintain a slim profile for the watch case. The movement facilitates the perpetual calendar complications, which include the tracking of the day, month, date, leap year, and moonphase.

The vendor reports that the watch is currently keeping time and functioning correctly. No specific records of previous maintenance or service are available for this unit.

Evidence for this section
  • “At its heart beats the legendary Caliber 240 Q, 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.”

Documentation and Provenance

The timepiece is supplied with its original black alligator leather strap and a platinum deployant clasp. As part of the acquisition process through the vendor, an Extract from the Archives has been requested from Patek Philippe to document the watch's origins.

The serial number is listed as 47XXXXX / 36XXXXX, and the model is defined under the reference 5040P.

Evidence for this section
  • “An Extract From The Archive has been ordered from Patek Philippe.”
  • “The watch comes supplied on its original black alligator Patek Phillipe strap with the original Patek Philippe platinum deployant clasp.”
  • “Serial 47XXXXX / 36XXXXX”

Open research questions

  • What is the exact year of production for this specific serial number range?
  • Have the hands been replaced during the watch's lifetime?

Source evidence

Recorded claims and source quotations for Patek Philippe Perpetual Calendar Moonphase Ref. 5040P
FieldSource-reported valueSource quotation
MakerPatek Philippe“Patek Philippe”
Case MaterialPlatinum“Crafted in platinum”
Case ShapeTonneau“unconventional tonneau-shaped case”
MovementCaliber 240 Q“At its heart beats the legendary Caliber 240 Q”
StrapBlack Alligator Leather“Patek Philippe Black Alligator Leather Strap”
Introduction Date1996“Introduced in 1996”

Visible details

  • The dial includes a 24-hour indicator sub-dial with a deep golden brown bottom section.
  • The case features a distinct tonneau profile rather than a standard circular shape.
  • The watch is fitted with an original Patek Philippe deployant clasp.
  • The sub-dial at the nine o'clock position tracks the day and a 24-hour cycle.

Research qualifications

  • The precise manufacturing year within the 1990s decade is not specified beyond the 1996 introduction date.
  • Previous service history is explicitly stated as unknown by the vendor.

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

Consulted source

ساعت Patek Philippe Perpetual Calendar Moonphase (Ref. 5040P) از جنس پلاتین

Reviewed 2026-11-02 · Record a06d122191

Terms in this record

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

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