Skip to content

Vacheron & Constantin Ref. 43031 Perpetual Calendar Wristwatch

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

1980s

Maker / issuer

Vacheron Constantin

This Vacheron & Constantin gentleman's wristwatch, reference 43031, dates to the 1980s. The watch features a massive platinum case measuring 36 mm in diameter, characterized by a combination of polished and satined surfaces, stepped sides, and straight lugs.

The dial is finished in a matte silver tone, decorated with applied platinum baton indices and platinum baton hands. Functionally, the timepiece is an astronomic watch, incorporating a self-winding movement with a perpetual calendar mechanism displaying days of the month, week, months, leap year cycle, and age of the moon, accompanied by a moon phase aperture. The movement, Caliber K 1120, bears the Geneva Quality Hall Mark, is rhodium-plated, features fausses côtes decoration, and utilizes a 21-karat gold rotor.

The watch is signed on the dial, case, and movement.

Evidence at a glance

Linked sources
1
Photograph views
1
Catalogue references
0

Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.

Technical characteristics

Type
Perpetual calendar watch
Maker
Vacheron & Constantin
Diameter
36 mm
Movement
Caliber K 1120
Reference
43031
Case Number
565786
Jewel Count
36
Case Material
Platinum
Place recorded
Switzerland
Movement Number
709073
Maker / attribution
Vacheron & Constantin

Design

Case and Dial
The watch is housed in a massive platinum case measuring 36 mm in diameter. The exterior construction features a blend of polished and satined surfaces, with the case sides described as stepped and the lugs as straight. The watch is worn on a strap, and the overall configuration follows a traditional round aesthetic. The dial is executed in a matte silver finish, providing a backdrop for applied platinum baton indexes and matching platinum baton hands. The display is densely populated to support its calendar functions, featuring auxiliary dials for the days of the month, days of the week, the months, the leap year cycle, and the age of the moon. A dedicated aperture for lunations is located at the lower section of the dial.
Visible features
• Applied platinum baton indexes • Matte silver dial finish • Moon phase aperture positioned at 6 o'clock • Stepped case sides
Movement and Mechanics
The timepiece is powered by the Vacheron & Constantin caliber K 1120, a self-winding movement featuring 36 jewels and a 21-karat gold rotor. The movement architecture includes a lever escapement and a monometallic balance adjusted for heat, cold, and isochronism, as well as 5 positions. It is equipped with an anti-shock system and a self-compensating flat balance-spring. The movement is finished with rhodium plating and traditional fausses côtes decoration. Notably, the movement carries the Geneva Quality Hall Mark, identifying its compliance with established regional standards for finishing and construction. The movement, like the case and dial, is signed by the manufacturer.
Condition and Attribution
The auction description reports that the object is in very good condition. The watch is dated to the 1980s by the source. Documentation of this reference is supported by its inclusion in external horological literature.

Identification

Reference
43031
Serial number
709073 (movement); 565786 (case)
Source note
Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.

Research required

  • Research required: Specific production year within the 1980s is not defined
  • Research required: History of maintenance or potential part replacement remains unverified
Can you source one of these? Submit a reference