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The Encyclopedia of Horology

Pocket watch · Open-face deck chronometer

Patek Philippe Ref. 739 Silver Open Face Deck Chronometer

Partially verified

This open-face deck chronometer from Patek Philippe features a 60mm silver case manufactured by S. Graber SA housing a manual-wind 21-ligne calibre with gold wheels and a Guillaume balance. According to archive records cited by the auctioneer, movement number 182'716 was manufactured in 1914, cased in 1941, and sold in March 1942. The dial presents black Arabic hour numerals, an outer railway minute track, blued steel hands, and a subsidiary seconds display at 6 o'clock inscribed with the movement number.

Front view of the silver open-face deck chronometer showing dial and hands
Front view of the silver open-face deck chronometer showing dial and hands — Phillips. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.phillips.com
Category
Pocket watch · Open-face deck chronometer
Maker / attribution
Patek Philippe
Reference
739
Catalogue / lot identifier
839
Source-reported date
1914
Country
Switzerland
Source-reported serial
182'716

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 Provenance

This timepiece is identified as a Patek Philippe reference 739 open-face deck chronometer with movement number 182'716 and case number 626'022. The watch is constructed with a 60mm silver case manufactured by S. Graber SA.

Auction documentation includes an Extract from the Archives stating the movement was produced in 1914, encased in 1941, and sold on March 24, 1942.

Evidence for this section
  • “Movement No 182'716”
  • “Case No 626'022”
  • “The present watch with a S. Graber SA case”
  • “Accompanied with Extract from the Archives confirming production of the present watch movement in 1914 and encased in 1941, and its subsequent sale on March 24th, 1942”

Dial and Visual Observations

The watch features a white dial with black Arabic hour numerals and an outer railway minute track. A subsidiary seconds subdial is located at 6 o'clock.

The dial is signed 'PATEK, PHILIPPE & CIE GENÈVE' and marked with the movement number '182716'. The case is fitted with a pendant and fluted crown.

Evidence for this section
  • “White dial with black Arabic hour numerals and an outer railway minute track.”
  • “Dial signed 'PATEK, PHILIPPE & CIE GENÈVE' above the movement number '182716'.”
  • “Silver open-face case with pendant, fluted crown, and oval bow at 12 o'clock.”

Mechanical Specifications

The movement is identified as a manual-wind 21-ligne calibre featuring gold wheels. It is described by the source as a deck chronometer with a Guillaume balance.

Direct visual verification of the movement and interior case back is not possible from the provided source images.

Evidence for this section
  • “Calibre Manual, cal. 21” gold wheels”
  • “A fine and rare silver open face deck chronometer with Guillaume balance”

Open research questions

  • Are there visible hallmarks on the case consistent with the FFBA Swiss silver hallmark mentioned in the catalogue essay?
  • Does the current lot include the wooden deck box historically associated with this reference?
  • Is there photographic confirmation of the 21-ligne movement and internal case markings?

Source evidence

Recorded claims and source quotations for Patek Philippe Ref. 739 Silver Open Face Deck Chronometer
FieldSource-reported valueSource quotation
Movement Number182'716“Movement No 182'716”
Case Number626'022“Case No 626'022”
MaterialSilver“Material Silver”
CalibreManual, cal. 21” gold wheels“Calibre Manual, cal. 21” gold wheels”
Dimensions60mm diameter“Dimensions 60mm diameter”
Case MakerS. Graber SA“The present watch with a S. Graber SA case”
Dimensions60mm“Dimensions 60mm diameter”

Visible details

  • White dial with black Arabic hour numerals and an outer railway minute track.
  • Blued steel spade hour and minute hands with a blued subsidiary seconds hand.
  • Subsidiary seconds subdial positioned at 6 o'clock.
  • Dial signed 'PATEK, PHILIPPE & CIE GENÈVE' above the movement number '182716'.
  • Silver open-face case with pendant, fluted crown, and oval bow at 12 o'clock.

Research qualifications

  • Movement and interior case back are not visible in the provided photograph; calibre details and case numbers rely on auctioneer documentation.
  • Original wooden deck box mentioned in historical background is not listed as included with the lot.

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

Consulted source

Patek Philippe The Hong Kong Watch Auction: SEVEN

Reviewed 2026-10-22 · Record b5351e6d8d

Terms in this record

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