Skip to content
The Encyclopedia of Horology

Wristwatch · Triple calendar wristwatch

Vacheron Constantin "Calendar with Weeks" Wristwatch

Partially verified

This Vacheron Constantin "Calendar with Weeks" is a gentleman's 18K yellow gold self-winding wristwatch. Produced in the 1990s, the watch features an astronomical complication displaying a triple date, a 52-week annual cycle, and moon phases. The case is a three-body design with a polished finish, stepped bezel, straight lugs, and a case back secured by eight screws. Measuring 35 mm in diameter and 9 mm in thickness, it is fitted with a silver guilloché dial containing subsidiary dials for days and months, alongside the moon phase aperture. The movement, Caliber 1126, comprises 33 jewels, a rhodium-plated finish with fausses côtes decoration, and a 21K gold rotor segment. It incorporates a straight-line lever escapement and a monometallic balance adjusted to heat, cold, isochronism, and five positions. The watch is presented with an 18K yellow gold buckle, a fitted box, and a certificate.

Front view of the Vacheron Constantin 47052 wristwatch featuring an astronomical dial and leather strap.
Front view of the Vacheron Constantin 47052 wristwatch featuring an astronomical dial and leather strap. — Antiquorum. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
catalog.antiquorum.swiss
Category
Wristwatch · Triple calendar wristwatch
Maker / attribution
Vacheron Constantin
Reference
47052
Catalogue / lot identifier
331
Source-reported date
1990s
Source-reported place
Switzerland
Source-reported serial
646219

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 an 18K yellow gold three-body case featuring a polished finish and a stepped bezel. The design incorporates straight lugs and a flat sapphire crystal. Access to the movement is provided via a case back secured by eight individual screws.

The dial is finished with a silver guilloché pattern. It features an outer plain reserve displaying painted graduation for both the weeks and the months of the year. Concentric graduations indicate the hours and minutes. Additionally, the dial hosts subsidiary dials for the days of the week and the month, with a specific aperture dedicated to the moon phase cycle. Yellow gold bâton hands are used for time indication.

Evidence for this section
  • “Three-body, solid, polished, stepped bezel, straight lugs, case back with 8 screws, flat sapphire crystal.”
  • “Guilloché" silver, outer plain reserve with painted graduation for the weeks and the months, concentric graduation for the hours and minutes, subsidiary dials for the days of the week and the month, aperture for the moon phases.”

Movement and Escapement

The timepiece is powered by the self-winding Caliber 1126 movement. This movement contains 33 jewels and is rhodium-plated, finished with fausses côtes decoration. The automatic system is driven by a 21K gold rotor segment.

The regulation of the movement relies on a straight-line lever escapement and a monometallic balance. The balance is adjusted for heat, cold, isochronism, and five positions. The system also includes a shock-absorber and a self-compensating balance spring to maintain chronometric performance.

Evidence for this section
  • “M. Cal. 1126, 33 jewels, rhodiumplated, "fausses côtes" decoration, straight line lever escapement, monometallic balance adjusted to heat, cold, isochronism and 5 positions, shock-absorber, self-compensating balance spring, 21K gold rotor segment.”

Signatures and Condition

The auction description confirms that the dial, case, and movement are all appropriately signed by the maker. The watch is accompanied by a fitted box and a certificate of authenticity.

Regarding the condition reported by the auction house, the overall grade assigned is AA (Very good). The case is specifically rated as Grade 3 (Good), while the movement and dial are graded as Grade 2 (Very good).

Evidence for this section
  • “Dial, case and movement signed.”
  • “Grading System Grade: AA Very good Case: 3 Good Movement: 2 Very good Dial: 2-01 Very good”

Open research questions

  • What is the specific production year within the 1990s decade for this serial number?
  • Are there specific service records associated with the current condition grade of 3 for the case?

Source evidence

Recorded claims and source quotations for Vacheron Constantin "Calendar with Weeks" Wristwatch
FieldSource-reported valueSource quotation
MakerVacheron Constantin“Vacheron Constantin, Genève”
Case Number646219“case No. 646219”
Reference47052“Ref. 47052”
MovementCal. 1126“M. Cal. 1126”
Case Material18K yellow gold“18K yellow gold gentleman's wristwatch”
Diameter35 mm“Diam. 35 mm”
Adjustments5 positions“adjusted to heat, cold, isochronism and 5 positions”
Strap accessories18K yellow gold buckle“an 18K yellow gold Vacheron Constantin buckle”

Visible details

  • Silver guilloché dial with painted week and month graduation
  • Three-body case construction with a stepped bezel
  • Case back secured by eight screws
  • Bâton-style yellow gold hour and minute hands

Research qualifications

  • The source attributes the watch to the 1990s without providing a specific year of manufacture
  • The grading system provided is internal to the auction house and not a standardized horological condition report

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

Consulted source

"Calendar with Weeks" Vacheron Constantin, Genève, case No. 646219, Ref. 47052. Made in the 1990s. Very fine and rare, astronomic, water-resistant, self-winding, 18K yellow gold gentleman's wristwatch with triple date, 52-week indication, moon phases and an 18K yellow gold Vacheron Constantin buckle. Accompanied by a fitted box and a certificate.

Reviewed 2026-10-26 · Record 33ceef2a13

Terms in this record

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

Other triple calendar wristwatch records