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The Encyclopedia of Horology

Wristwatch · Annual calendar regulator wristwatch

Patek Philippe Ref. 5235G-001 Regulator Wristwatch

Partially verified

Catalogued as reference 5235G-001, this Patek Philippe annual calendar wristwatch is executed in 18K white gold with a 40.5 mm diameter case. The vertically arranged regulator layout displays a central minute hand alongside an off-center hour subdial at 12 o'clock and subsidiary seconds with an integrated date window at 6 o'clock. Apertures flanking the upper register show the day of the week and month. The source reports it is powered by the automatic caliber 31-260 with 29 jewels, numbered 6’034’622, and fitted to a crocodile leather strap with an 18K white gold pin buckle.

Dial and case front of the Patek Philippe Ref. 5235G-001 regulator wristwatch on strap
Dial and case front of the Patek Philippe Ref. 5235G-001 regulator wristwatch on strap — Phillips. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.phillips.com
Category
Wristwatch · Annual calendar regulator wristwatch
Maker / attribution
Patek Philippe
Reference
5235G-001
Catalogue / lot identifier
1065
Source-reported date
Circa 2015
Country
Switzerland
Source-reported serial
5’850’750

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 External Construction

The reference 5235G-001 is executed in 18K white gold with a 40.5 mm diameter case. The watch is fitted with a crocodile leather strap and an 18K white gold pin buckle.

The case back is not visible in the provided photographic source.

Evidence for this section
  • “Material 18K white gold”
  • “Dimensions 40.5mm diameter”
  • “Bracelet/Strap Crocodile”
  • “Clasp/Buckle 18K white gold Patek Philippe pin buckle”

Dial Configuration

The timepiece features a vertically arranged regulator layout on a silvered dial. It displays a central minute hand and two subsidiary registers with an opaline white finish.

The dial includes an off-center hour subdial at 12 o'clock, a subsidiary seconds subdial at 6 o'clock, an integrated date window, and apertures for the day of the week and month.

Evidence for this section
  • “Vertically brushed silvered dial surface with two opaline white subsidiary registers.”
  • “Blued central minute hand with matching blued subdial hands.”
  • “Day aperture at approximately 10 o'clock and month aperture at approximately 2 o'clock.”
  • “Integrated date aperture positioned at the bottom of the subsidiary seconds subdial.”

Mechanism and Provenance

The movement is identified as an automatic caliber 31-260 with 29 jewels, numbered 6’034’622. The internal mechanism is not visible in the provided imagery.

The watch is dated to approximately 2015, with accompanying documentation including a Certificate of Origin dated 28th September 2015.

Evidence for this section
  • “Calibre Automatic, cal. 31-260, 29 jewels”
  • “Movement No 6’034’622”
  • “Year Circa 2015”
  • “Certificate of Origin stamped Mitsukoshi Ltd. Fukuoka Japan dated 28th September 2015”

Open research questions

  • Are there visible signs of wear on the crocodile strap or pin buckle not captured in the primary catalog image?
  • Does the case show signs of polishing or oxidation on the white gold surfaces?

Source evidence

Recorded claims and source quotations for Patek Philippe Ref. 5235G-001 Regulator Wristwatch
FieldSource-reported valueSource quotation
Reference Number5235G-001“Reference No 5235G-001”
Case Number5’850’750“Case No 5’850’750”
Movement Number6’034’622“Movement No 6’034’622”
CalibreAutomatic, cal. 31-260, 29 jewels“Calibre Automatic, cal. 31-260, 29 jewels”
Case Material18K white gold“Material 18K white gold”
Case Dimensions40.5mm diameter“Dimensions 40.5mm diameter”

Visible details

  • Vertically brushed silvered dial surface with two opaline white subsidiary registers.
  • Blued central minute hand with matching blued subdial hands.
  • Day aperture at approximately 10 o'clock and month aperture at approximately 2 o'clock.
  • Integrated date aperture positioned at the bottom of the subsidiary seconds subdial.

Research qualifications

  • Case back and movement are not visible in the provided photograph.
  • Accompanying certificate, box, and setting pin mentioned in cataloguing are not shown in the image.

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

Consulted source

Patek Philippe The Hong Kong Watch Auction: X

Reviewed 2026-10-21 · Record 39d2d7073e

Terms in this record

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

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