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The Encyclopedia of Horology

Pocket watch · Minute repeating split-seconds chronograph pocket watch

Patek Philippe Openface Minute Repeating Split-Seconds Chronograph Pocket Watch

Partially verified

According to the auction catalogue, this 18K yellow gold openface pocket watch was manufactured by Patek Philippe in 1925. The 47 mm timepiece is powered by a manual lever movement with 40 jewels (movement number 197’995) housed in case number 412’553. Complications include a split-seconds chronograph operated with an outer track and a minute repeating mechanism striking hours, quarters, and minutes on two gongs via a case-side slide. The dial layout is vertically oriented with registers at 12 and 6 o'clock alongside applied gold Breguet numerals. An accompanying Extract from the Archives confirms its original sale on March 2nd, 1933.

Dial and case front of the Patek Philippe openface minute repeating split-seconds chronograph pocket watch
Dial and case front of the Patek Philippe openface minute repeating split-seconds chronograph pocket watch — Phillips. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.phillips.com
Category
Pocket watch · Minute repeating split-seconds chronograph pocket watch
Maker / attribution
Patek Philippe
Reference
Not recorded
Catalogue / lot identifier
27
Source-reported date
1925
Country
Switzerland
Source-reported serial
412’553

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 Construction and Exterior Controls

The pocket watch is configured in an openface 18K yellow gold case measuring 47 mm in diameter. Visible actuation elements include a winding crown with a split-seconds pusher, a suspension bow stamped 'P.P.Co', and a repeater slide located along the left flank of the case band.

According to the auction catalogue, the case, cuvette, dial, and movement are signed, and the case, cuvette, and movement are numbered under case number 412’553.

Evidence for this section
  • “Dimensions 47mm Diameter”
  • “Case, cuvette, dial and movement signed; case, cuvette and movement numbered.”
  • “Openface 18K yellow gold case with a crown, split-seconds pusher, and suspension bow stamped 'P.P.Co'”

Dial Configuration and Indications

The dial features a light-toned surface with applied yellow gold Breguet numerals and a peripheral 60-unit track. The dial bears the signature 'PATEK, PHILIPPE & Co GENEVA SWITZERLAND'.

The layout uses a vertically oriented two-register design, positioning a 30-minute chronograph register at 12 o'clock and a subsidiary seconds sub-dial at 6 o'clock.

Evidence for this section
  • “Dial signed 'PATEK, PHILIPPE & Co GENEVA SWITZERLAND'”
  • “Employing an uncommon vertically oriented, two register layout, the stunning dial features beautiful, applied gold Breguet numerals.”
  • “Vertically aligned sub-dials situated at 12 o'clock (30-minute counter) and 6 o'clock (subsidiary seconds)”

Movement and Complication Capabilities

The movement is recorded by the auction house as a manual-wind lever caliber with 40 jewels, bearing movement number 197’995. The catalogue lists the production year as 1925, detailing a split-seconds chronograph and a minute repeating mechanism striking the hours, quarters, and minutes on two gongs.

Because internal components and the cuvette interior are not depicted in the provided imagery, the internal movement condition, chiming acoustic quality, and specific internal finishing are not visible in the visual record and rely on cataloguing assertions.

Evidence for this section
  • “Movement No 197’995”
  • “Calibre Manual, lever movement, 40 jewels”
  • “Chiming the exact time by repeating the hours, quarters, and minutes on two gongs, it has a loud, harmonious, and rich tone.”

Documentary Ephemera and Limitations

Catalogue documentation states that the watch is accompanied by an original Patek Philippe Certificate of Origin, an original bill of sale for $1,175, an outer envelope, and an Extract from the Archives confirming its sale date as March 2nd, 1933.

The source does not record intervening ownership history, chain of custody between 1933 and the auction, or subsequent servicing interventions.

Evidence for this section
  • “Accompanied by original Patek Philippe Certificate of Origin and bill of sale for $1,175, and outer envelope.”
  • “Further accompanied by Extract from the Archives confirming its sale on March 2nd, 1933.”
  • “Year 1925”

Open research questions

  • What specific retailer or client is recorded on the 1933 bill of sale and Certificate of Origin accompanying movement 197'995?
  • What markings, signatures, or commemorative engravings appear on the interior cuvette and case back?
  • Does the 40-jewel split-seconds repeating caliber bear an identifiable ebauche manufacturer stamp?

Source evidence

Recorded claims and source quotations for Patek Philippe Openface Minute Repeating Split-Seconds Chronograph Pocket Watch
FieldSource-reported valueSource quotation
Movement Number197’995“Movement No 197’995”
Case Number412’553“Case No 412’553”
Material18K yellow gold“Material 18K yellow gold”
CalibreManual, lever movement, 40 jewels“Calibre Manual, lever movement, 40 jewels”
Dimensions47mm Diameter“Dimensions 47mm Diameter”
Sale DateMarch 2nd, 1933“confirming its sale on March 2nd, 1933”
Original Invoiced Price$1,175“original Patek Philippe Certificate of Origin and bill of sale for $1,175”
Accompanying PaperworkCertificate of Origin, bill of sale, outer envelope, and Extract from the Archives“Accompanied by original Patek Philippe Certificate of Origin and bill of sale for $1,175, and outer envelope. Further accompanied by Extract from the Archives confirming its sale on March 2nd, 1933.”

Visible details

  • Openface 18K yellow gold case with a crown, split-seconds pusher, and suspension bow stamped 'P.P.Co'
  • Slide mechanism for the minute repeater visible along the left flank of the case band
  • Light-toned dial with applied yellow gold Breguet numerals and outer 60-unit track
  • Vertically aligned sub-dials situated at 12 o'clock (30-minute counter) and 6 o'clock (subsidiary seconds)
  • Dial signed 'PATEK, PHILIPPE & Co GENEVA SWITZERLAND'

Research qualifications

  • Internal movement, cuvette inscriptions, and case back are not visible in the photograph
  • Chiming quality and mechanical function cannot be independently verified from the static photograph

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

Consulted source

Patek Philippe The New York Watch Auction: X

Reviewed 2026-10-21 · Record 65b0fdb024

Terms in this record

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

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