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The Encyclopedia of Horology

Wristwatch · Minute-repeater perpetual calendar wristwatch

Patek Philippe Ref. 5207/1P-001 Grande Complication

Partially verified

This Patek Philippe Ref. 5207/1P-001 is a platinum, manual-winding, tonneau-shaped gentleman’s wristwatch. It features a golden brown “brun doré” dial with radial applied 18K white gold indexes and nine horological complications, including a minute-repeater, a one-minute tourbillon regulator, and an instantaneous perpetual calendar with aperture-based displays for date, day, month, moon phases, leap-year cycle, and AM-PM indication. The case measures 41 mm in diameter and includes a concave bezel, a sapphire-crystal snap-on case-back, and a diamond set between the lugs at 6 o'clock. The watch is powered by the 549-component Caliber RTO 27 PS QI, which features a 14K gold central wheel and is adjusted to isochronism and six positions. Originally delivered to Al-Qurum Jewellery in Muscat, the watch was sold to Sultan Qaboos Bin Said in 2013 and is reported to be the only example fitted with a platinum bracelet.

Frontal view of the Patek Philippe Ref. 5207/1P-001 showing the golden brown dial, calendar apertures, and platinum bracelet.
Frontal view of the Patek Philippe Ref. 5207/1P-001 showing the golden brown dial, calendar apertures, and platinum bracelet. — Antiquorum. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
catalog.antiquorum.swiss
Category
Wristwatch · Minute-repeater perpetual calendar wristwatch
Maker / attribution
Patek Philippe
Reference
5207/1P-001
Catalogue / lot identifier
130
Source-reported date
circa 2013
Source-reported place
Switzerland
Source-reported serial
4 634 536

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 watch features a tonneau-shaped platinum case measuring 41 mm in diameter, characterized by a wide concave round bezel and polished lugs. The case-band is distinctively decorated with an engraved pattern in both relief and recess. A small diamond, weighing 0.02 ct, is set into the case between the lugs at the 6 o'clock position. The crown is signed with the Patek Philippe 'Calatrava' cross motif, and the case-back is fitted with a snap-on sapphire crystal.

The dial is finished in a golden brown, referred to as “brun doré,” and features radial applied indexes made of 18K white gold. Complication indicators are arranged via apertures rather than traditional hands, providing displays for the day of the week, date, month, moon phases, leap-year cycle, and an AM-PM indicator. A subsidiary seconds dial is located at the 6 o'clock position.

Evidence for this section
  • “wide concave round bezel, polished lugs, diamond set between the lugs at 6 (0.02 ct.)”
  • “Case-band engraved with a pattern in relief and recess.”
  • “Golden brown “brun doré” colour dial with radial applied 18K white gold indexes.”

Movement and Complications

The movement, Caliber RTO 27 PS QI, comprises 549 individual components and operates at 21,600 vibrations per hour. It integrates a minute-repeater system that functions via two hammers striking two steel gongs, controlled by a slide located on the case-band at 9 o'clock. The movement is also equipped with a one-minute tourbillon regulator, which is visible through the case-back.

A key feature of the watch is the instantaneous perpetual calendar mechanism, which is designed to change all calendar displays precisely at midnight. The movement is adjusted for isochronism, heat, cold, and six positions, and holds the Patek Philippe Seal. The construction includes a central wheel made of 14K gold, which features a design inspired by traditional watchmaking tools.

Evidence for this section
  • “Minute-repeater by two hammers on two steel gongs (activated by the slide located on the case-band at 9 o’clock)”
  • “One-minute tourbillon regulator (visible on the reverse of the watch)”
  • “One of the visual wonders of the movement is the central wheel in 14K gold”

Provenance and Documentation

According to the auction records, this watch was originally delivered to Al-Qurum Jewellery in Muscat, Oman, and sold to Sultan Qaboos Bin Said in December 2013. The watch is identified as the only known example of this reference to be fitted with a platinum bracelet, a feature suggested to have been a special request by the former Sultan.

The watch is accompanied by an extensive set of accessories including its original fitted box, the certificate of origin, and a Patek Philippe tourbillon wristwatch rating bulletin dated July 17, 2013. Additional items include an Extract from the Archives, a document-holder, a setting-pin, and an additional platinum case-back.

Evidence for this section
  • “The original Certificate mentioned that this watch was delivered to Al-Qurum Jewellery L.L.C., Muscat (Oman), and sold on December 11, 2013, to Sultan Qaboos Bin Said, Oman.”
  • “This is the only watch that appears to have been made by Patek Philippe with a platinum bracelet”

Open research questions

  • What is the specific material of the additional case-back provided with the set?
  • Are there archival records at Patek Philippe that confirm the exact number of platinum-bracelet Ref. 5207 watches produced?

Source evidence

Recorded claims and source quotations for Patek Philippe Ref. 5207/1P-001 Grande Complication
FieldSource-reported valueSource quotation
MakerPatek Philippe“Patek Philippe”
Reference5207/1P-001“Ref. 5207 / 1P-001”
Case Number4 634 536“Case No. 4 634 536”
Movement Number5 001 400“Movement No. 5 001 400”
CaliberRTO 27 PS QI“Caliber RTO 27 PS QI”
Case Diameter41 mm“Diameter 41 mm.”
ProvenanceSultan Qaboos Bin Said“sold on December 11, 2013, to Sultan Qaboos Bin Said, Oman.”
Dial ColorGolden brown“Golden brown “brun doré” colour dial”

Visible details

  • Golden brown dial with apertures for day, date, month, moon phase, and leap-year
  • Minute-repeater activation slide located on the 9 o'clock case-band
  • Case-band decorated with engraved relief and recess pattern
  • Crown featuring the Patek Philippe 'Calatrava' motif

Research qualifications

  • The source reports the object is 'possibly piece unique' regarding its configuration
  • The movement is noted to require an overhaul at the buyer's expense
  • The association with Sultan Qaboos Bin Said is based on archival records provided by the auction house

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

Consulted source

PATEK PHILIPPE Ref. 5207 / 1P-001, minute-repeater, perpetual calendar àguichets (with apertures), leap-year indication, moon phases, AM-PM indication, tourbillon regulator, platinum bracelet; possibly piece unique; platinum

Reviewed 2026-10-26 · Record d4cfd8fc1f

Terms in this record

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