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The Encyclopedia of Horology

Wristwatch · Annual calendar regulator wristwatch

Patek Philippe Ref. 5235G-001 Regulator Wristwatch

Partially verified

This Patek Philippe reference 5235G-001 is an 18K white gold annual calendar regulator wristwatch measuring 40.5 mm in diameter, dated circa 2015. The source reports that it is powered by the automatic caliber 31-260 movement with 29 jewels. The timepiece presents a vertically brushed two-tone silvered dial in a regulator layout, displaying an off-center 12-hour subdial, a subsidiary seconds subdial with an aperture for the date, a central blued minute hand, and apertures for the day and month. It is fitted with a crocodile strap and an 18K white gold pin buckle.

Patek Philippe Ref. 5235G-001 regulator wristwatch with two-tone silvered dial
Patek Philippe Ref. 5235G-001 regulator wristwatch with two-tone silvered dial — 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
953
Source-reported date
Circa 2015
Country
Switzerland
Source-reported serial
6’034’622

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

Identity and Overview

Catalogued under reference 5235G-001 with case number 5’850’750, this Patek Philippe annual calendar wristwatch is executed in 18K white gold. The auction listing dates the timepiece to circa 2015, accompanied by documentation dated September 2015.

Identified under the model name Regulator, the watch is catalogued with a diameter of 40.5 mm and features a crocodile strap with an 18K white gold pin buckle.

Evidence for this section
  • “Reference No 5235G-001”
  • “Case No 5’850’750”
  • “Material 18K white gold”
  • “Year Circa 2015”
  • “Model Name Regulator”
  • “Dimensions 40.5mm Diameter”

Dial Display and Visible Features

Direct visual inspection shows a two-tone vertically brushed silver dial configured with an outer railroad track chapter ring and a regulator layout. Hours are indicated on an upper 12-hour subdial, while minutes are read via a long central blued hand that traverses the dial diameter.

The lower subsidiary seconds subdial incorporates an aperture displaying the date as '22'. Additional apertures display the day of the week ('FRI') at approximately 10 o'clock and the month ('MAR') at approximately 2 o'clock. The case features straight lugs fitted to a dark blue crocodile strap.

Evidence for this section
  • “Two-tone vertically brushed silver dial with an outer railroad track chapter ring.”
  • “Regulator dial layout featuring an upper 12-hour subdial and a lower subsidiary seconds subdial containing a date aperture showing '22'.”
  • “Long central blued minute hand traversing the full dial diameter.”
  • “Apertures for day of the week ('FRI') at approximately 10 o'clock and month ('MAR') at approximately 2 o'clock.”
  • “Dark blue crocodile strap fitted to straight lugs.”

Movement Specifications and Catalogued Accompaniments

The movement is recorded by the auction house as the automatic caliber 31-260 with 29 jewels, assigned movement number 6’034’622. The cataloguing notes that the dial, case, movement, and buckle are signed.

Listed accompaniments include a Patek Philippe Certificate of Origin stamped Mitsukoshi Ltd. Fukuoka Japan and dated 28th September 2015, alongside an instruction manual, product literature, setting pin, leather folio, outer packaging, and a fitted presentation box. Movement and accessories are not pictured in the primary lot photograph.

Evidence for this section
  • “Movement No 6’034’622”
  • “Calibre Automatic, cal. 31-260, 29 jewels”
  • “Signed Dial, case, movement and buckle”
  • “Patek Philippe Certificate of Origin stamped Mitsukoshi Ltd. Fukuoka Japan dated 28th September 2015, instruction manual, product literature, setting pin, leather folio, outer packaging and fitted presentation box”

Open research questions

  • What specific hallmarks and reference/case numbers are stamped on the interior or exterior of the case back?
  • What individual movement stamps and finishing details are visible on caliber 31-260, number 6’034’622 upon unsealing or viewing the case back?
  • Does the serial number documented on the Mitsukoshi Ltd. Fukuoka Certificate of Origin match movement number 6’034’622 and case number 5’850’750?

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”
Movement Number6’034’622“Movement No 6’034’622”
Case Number5’850’750“Case No 5’850’750”
CalibreAutomatic, cal. 31-260, 29 jewels“Calibre Automatic, cal. 31-260, 29 jewels”
Case Material18K white gold“Material 18K white gold”
Dimensions40.5mm Diameter“Dimensions 40.5mm Diameter”
Buckle18K white gold Patek Philippe pin buckle“Clasp/Buckle 18K white gold Patek Philippe pin buckle”
Certificate Retailer and DateStamped Mitsukoshi Ltd. Fukuoka Japan, dated 28th September 2015“Patek Philippe Certificate of Origin stamped Mitsukoshi Ltd. Fukuoka Japan dated 28th September 2015”
Auction ResultHK$275,000“Sold For HK$275,000”

Visible details

  • Two-tone vertically brushed silver dial with an outer railroad track chapter ring.
  • Regulator dial layout featuring an upper 12-hour subdial and a lower subsidiary seconds subdial containing a date aperture showing '22'.
  • Long central blued minute hand traversing the full dial diameter.
  • Apertures for day of the week ('FRI') at approximately 10 o'clock and month ('MAR') at approximately 2 o'clock.
  • Dark blue crocodile strap fitted to straight lugs.

Research qualifications

  • Movement and case back are not visible in the supplied front photograph.
  • Accompanied accessories including certificate, box, and setting pin are source-reported but not pictured.

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

Consulted source

Patek Philippe The Hong Kong Watch Auction: NINE

Reviewed 2026-10-21 · Record 186a111a93

Terms in this record

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

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