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The Encyclopedia of Horology

Wristwatch · Dress watch

Patek Philippe Calatrava Reference 2598J

Partially verified

This Patek Philippe Calatrava reference 2598J is a vintage dress watch produced in the second half of the 1950s. The timepiece features a 33mm round case manufactured in 18k yellow gold, characterized by relatively short lugs and a snap-back case-back. It is powered by the manual-wind Calibre 10-200 movement. The dial is described as an opaline, warm silver surface featuring applied hour markers, with a small seconds sub-dial positioned at 6 o'clock and a raised enamel signature. The watch is currently paired with a leather strap and a buckle produced by Bulang & Sons. The auction description reports that the movement has been serviced by their watchmaker.

Front view of the Patek Philippe Calatrava 2598J on a leather strap.
Front view of the Patek Philippe Calatrava 2598J on a leather strap. — Bulang & Sons. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.bulangandsons.com
Category
Wristwatch · Dress watch
Maker / attribution
Patek Philippe
Reference
2598J
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
second half of the 1950’s
Source-reported place
Switzerland
Source-reported serial
748xxx / 260xxxx

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

The watch is housed in a 33mm 18k yellow-gold case. The design incorporates relatively short lugs and a snap-back case-back, consistent with the construction of mid-century dress watches. A small winding crown is positioned on the side of the case.

The dial is finished in a warm silver, often referred to as opaline. It features applied hour markers, with a prominent double-baton marker at the 12 o'clock position. The Patek Philippe signature is applied in raised enamel. A small seconds sub-dial is located at the 6 o'clock position, and the hands are slender, matching the gold tone of the case.

Evidence for this section
  • “33mm 18k yellow gold case with snap back case-back”
  • “Opaline Dial with raised enamel signature and a small seconds register at 6 o’clock”
  • “Warm silver dial with elegant hour markers”

Movement and Function

The timepiece is driven by the Patek Philippe Calibre 10-200, a hand-wound mechanical movement. This movement is designed for time-only display with a separate seconds register at 6 o'clock.

The auction description reports that the movement has undergone a full servicing by the vendor's watchmaker. The serial number associated with the movement is recorded as 748xxx, which, combined with the case serial of 260xxxx, is used to attribute the manufacture of the piece to the second half of the 1950s.

Evidence for this section
  • “Calibre Calibre 10-200 hand wound movement”
  • “Movement number 748xxx/ case number 260xxxx dating to the second half of the 1950’s”
  • “hand-wound Calibre 10-200 has been fully serviced by our watchmaker”

Provenance and Documentation

The watch is sold as part of a contemporary retail offering, accompanied by a strap and buckle provided by Bulang & Sons.

While the watch is noted for its mid-century origins, it is not described as having any specialized complications, with its primary function being the understated display of hours, minutes, and seconds.

Evidence for this section
  • “The Patek Philippe Calatrava was introduced in 1932”
  • “Bulang and sons leather strap, Bulang and sons buckle”
  • “One-year mechanical warranty”

Open research questions

  • Can the partial serial numbers be fully verified against Patek Philippe archives for a specific production year?
  • To what extent do the current strap and buckle affect the collector value compared to original period-correct accessories?

Source evidence

Recorded claims and source quotations for Patek Philippe Calatrava Reference 2598J
FieldSource-reported valueSource quotation
ModelPatek Philippe Calatrava 2598J“Patek Philippe Calatrava 2598J in 18k Yellow Gold”
Case diameter33mm“33mm 18k yellow gold case”
MovementCalibre 10-200“Calibre Calibre 10-200 hand wound movement”
Movement number748xxx“Movement number 748xxx”
Case number260xxxx“case number 260xxxx”
Dial descriptionWarm silver“Warm silver dial with elegant hour markers”
StrapBulang and sons leather strap“Bulang and sons leather strap, Bulang and sons buckle”

Visible details

  • Small winding crown on the right side of the case
  • Applied double-baton hour marker at 12 o'clock
  • Sub-dial for small seconds at 6 o'clock
  • Straight, tapering hour and minute hands

Research qualifications

  • Movement and case serial numbers are provided as partial strings
  • Exact date of production remains within a multi-year range

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

Consulted source

Patek Philippe Calatrava 2598J in 18k Yellow Gold

Reviewed 2026-11-02 · Record 5db9029b19

Terms in this record

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

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