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The Encyclopedia of Horology

Wristwatch · World time wristwatch

Jaeger-LeCoultre Master Control 1000 Hours Géographique Ref. 142.3.92

Partially verified

This Jaeger-LeCoultre wristwatch, identified as the Master Control 1000 Hours Géographique, reference 142.3.92, dates to the late 1990s. The watch is constructed in 18K white gold and features a three-body polished case with concave lugs and a transparent case back secured by four screws. The two-tone silver dial includes applied white gold dart indexes and white gold dauphine hands. It functions as a world time piece with center seconds, an aperture for a bi-directional rotating city disk, and a secondary crown positioned at 10 o'clock to adjust time zones. The movement is a self-winding Caliber 929/3, rhodium-plated with fausses côtes decoration, 38 jewels, and a 22K gold rotor segment. Additional complications include a date indicator, a 40-hour power reserve display, and a day/night indicator. The object is completed by an 18K white gold deployant clasp and is accompanied by a fitted box.

Front view of the Jaeger-LeCoultre Master Control Géographique wristwatch showing the dial, hands, and leather strap.
Front view of the Jaeger-LeCoultre Master Control Géographique wristwatch showing the dial, hands, and leather strap. — Antiquorum. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
catalog.antiquorum.swiss
Category
Wristwatch · World time wristwatch
Maker / attribution
Jaeger-LeCoultre
Reference
142.3.92
Catalogue / lot identifier
30
Source-reported date
Late 1990s
Source-reported place
Switzerland

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 three-body, solid, polished 18K white gold case measuring 38 mm in diameter and 12 mm in thickness. It features concave lugs and a transparent case back secured by four screws, allowing visibility of the internal mechanics. A secondary crown is located at the 10 o'clock position, specifically designed to control the city selection for the world time function.

The dial is rendered in a two-tone silver finish, incorporating applied white gold dart indexes and dauphine-style hands. Sub-dials displaying guilloché patterns provide readings for the second time zone, the date, and the up-and-down power reserve indication. An aperture is positioned to display the bi-directional rotating disk containing the names of major world cities.

Evidence for this section
  • “Three-body, solid, polished, concave lugs, hinged cover over transparent case back with 4 screws”
  • “a second crown at 10 to select the city of an additional time zone”
  • “Twotone silver with applied white gold dart indexes, ?guilloché? subsidiary dials”
  • “aperture for a bi-directional rotating disk with the names of the main cities of the world”

Movement and Escapement

The timepiece is powered by the self-winding Caliber 929/3, which is rhodium-plated and finished with fausses côtes decoration. The movement includes 38 jewels, a straight-line lever escapement, and a monometallic balance that is adjusted to 6 positions. It is equipped with a shock-absorber system, a self-compensating flat balance-spring, and a micrometer regulator for precise adjustments.

The winding system utilizes a 22K gold rotor segment to improve efficiency. The movement, along with the case and dial, is signed by the manufacturer, reflecting the construction standards of the Master Control series during this period.

Evidence for this section
  • “straight line lever escapement, monometallic balance adjusted to 6 positions”
  • “22K gold rotor segment”
  • “Dial, case and movement signed.”

Condition and Attribution

The auction description provides a grading assessment for the watch, which is categorized as Grade AA, described as very good. Specific component grading notes the movement as 2 (very good), the dial as 2-01 (very good), and the case as 3 (good). The hands are stated to be original to the piece.

The watch is accompanied by its fitted box. As a production piece from the late 1990s, it carries the designation '1000 Hours', referring to the testing protocol performed by the maker. The attribution and dating are based on the internal records provided by the source for this specific lot.

Evidence for this section
  • “Grading System Grade: AA Very good”
  • “Case: 3 Good Movement: 2 Very good Dial: 2-01 Very good”
  • “HANDS Original”
  • “Accompanied by a fitted box.”

Open research questions

  • Does the '1000 Hours' testing certification apply to every unit in this reference range?
  • What is the full list of cities available on the rotating disk for this specific production run?

Source evidence

Recorded claims and source quotations for Jaeger-LeCoultre Master Control 1000 Hours Géographique Ref. 142.3.92
FieldSource-reported valueSource quotation
MakerJaeger-LeCoultre“Jaeger-LeCoultre”
Reference142.3.92“Ref. 142.3.92”
Material18K white gold“18K white gold gentleman's wristwatch”
MovementCal. 929/3“Cal. 929/3”
Power reserve40 hours“40-hour power reserve”
Jewel count38 jewels“38 jewels”
Case dimensions38 mm diameter, 12 mm thickness“Diam. 38 mm. Thickness 12 mm.”

Visible details

  • Concave lugs on a polished white gold case
  • Secondary crown at 10 o'clock for city selection
  • Guilloché subsidiary dials for complications
  • Visible 22K gold rotor segment on the movement

Research qualifications

  • Specific production year within the late 1990s is not defined
  • The exact geographical list on the rotating disk is not fully visible

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

Consulted source

'Master Control' Jaeger-LeCoultre, "Master Control 1000 Hours, Géographique", Ref. 142.3.92. Made in the late 1990s. Very fine, "World Time", center-seconds, self-winding, water-resistant, 18K white gold gentleman's wristwatch with date, 40-hour power reserve, day and night indication and an 18K white gold Jaeger-LeCoultre deployant clasp. Accompanied by a fitted box.

Reviewed 2026-10-26 · Record 37bafcb1d5

Terms in this record

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

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