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The Encyclopedia of Horology

Wristwatch · Calendar wristwatch with GMT

Blancpain GMT wristwatch

Partially verified

This Blancpain wristwatch is a self-winding timepiece housed in an 18k rose gold (750) case measuring 42 mm in diameter. Dating to approximately 2003, the watch is equipped with multiple complications including a GMT function, a calendar with day and month displays, and a moon phase indicator. The dial features applied Roman numeral and baton indices, with a central arrow-tipped hand for the GMT double time zone, a date track, and a moon phase display. The movement is self-winding and signed by the manufacturer. The watch is fitted with a brown leather strap featuring a rose gold deployant clasp.

Front view of the Blancpain GMT wristwatch, accompanied by its display box, manuals, and adjustment tool.
Front view of the Blancpain GMT wristwatch, accompanied by its display box, manuals, and adjustment tool. — Aguttes (via Invaluable). Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.invaluable.com
Category
Wristwatch · Calendar wristwatch with GMT
Maker / attribution
Blancpain
Reference
Not recorded
Catalogue / lot identifier
44
Source-reported date
circa 2003
Source-reported place
Switzerland
Source-reported serial
No. 34

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 features a round 18k rose gold case with a diameter of 42 mm. The case construction includes a pressure-fit case back and correctors positioned on the case middle to facilitate the adjustment of the calendar and GMT functions. The watch is secured to a brown leather strap fitted with an 18k rose gold deployant clasp.

The dial is silvered and adorned with applied Roman numerals and baton hour markers. A calendar function is indicated via a railway-style date track circling the perimeter of the dial, while day and month windows are situated at the upper center. A central arrow-tipped hand provides a GMT double time zone indication, and a moon phase display is positioned at the 6 o'clock mark.

Evidence for this section
  • “Boîtier : rond, fond fermeture à pression, correcteurs sur la carrure”
  • “Cadran : argenté avec index chiffres romains et bâtons appliqués, date à chemin de fer, second aiguille flèche au centre pour la fonction double fuseau horaire GMT, petite trotteuse et phases de la lune, signé”

Movement and Functionality

The timepiece is powered by an automatic, self-winding movement, which is signed by the manufacturer. The movement manages a variety of complications including the date, day, month, moon phases, and the GMT secondary time zone display.

The auction house states that the movement was in working order at the time of their cataloguing process, but specifies that the item is sold as-is.

Evidence for this section
  • “Mouvement : automatique, signé”
  • “mouvement fonctionne, révision d’usage à prévoir, sans garantie.”
  • “movement in working order at the time of cataloguing but plan for standard overhaul, without warranty.”

Provenance and Documentation

This watch is identified as number 34 of the series. The object is accompanied by a collection of original materials, including the manufacturer's box and an outer box.

The watch is catalogued under lot 44 in the auction records. The condition report provided by the auction house notes the presence of light wear from general use.

Evidence for this section
  • “BLANCPAIN GMT No. 34”
  • “livrets dont un avec le formulaire de garantie en date 15.05.2003”
  • “légères traces d’usures d’usage”

Open research questions

  • What is the specific Blancpain movement caliber number used in this reference?
  • Are all original components, such as the pushers and correctors, present and fully operational?

Source evidence

Recorded claims and source quotations for Blancpain GMT wristwatch
FieldSource-reported valueSource quotation
MakerBlancpain“BLANCPAIN”
Datecirca 2003“Vers 2003”
Case Material18k rose gold“or rose 18k (750)”
Diameter42 mm“Diam. 42 mm”
Serial NumberNo. 34“No. 34”
Included AccessoriesBox, booklets, and warranty form“écrin, sur boîte, livrets dont un avec le formulaire de garantie en date 15.05.2003”

Visible details

  • Applied Roman numeral and baton hour markers on dial
  • Moon phase aperture above the 6 o'clock position
  • Correctors located on the case middle for setting complications
  • Date track displayed on the outer perimeter of the dial

Research qualifications

  • Movement longevity not guaranteed
  • Exact operational status of GMT and calendar complications not independently verified

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

Consulted source

BLANCPAIN GMT No. 34

Reviewed 2026-10-26 · Record 2442d6fa44

Terms in this record

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