Jaeger-LeCoultre Master Control Master Control Geographic Stainless Steel / Silver

Reference Q4128421

Jaeger-LeCoultre Master Control Geographic Stainless Steel / Silver

About this watch

The Jaeger-LeCoultre Master Control Geographic Q4128421 debuted in 2025. This stainless steel wristwatch features a 40mm case with a silvered grey sunray-brushed dial. The layout includes a second time zone display at 6 o’clock, accompanied by a city disc for global time zone selection, as well as a power reserve indicator and date sub-dial. It is powered by the automatic 939AA, which offers hours, minutes, small seconds, date, second time zone, power reserve, and world city indicator functions. The movement is visible through a sapphire crystal case back and delivers a power reserve of approximately 70 hours. The watch is delivered with a light brown calfskin leather strap and an additional black alligator leather strap, both secured with a stainless steel folding clasp.
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Specifications

Brand
Jaeger-LeCoultre
Family
Master Control
Model
Master Control Geographic Stainless Steel / Silver
Reference
Q4128421
Movement
939aa
Movement Features
  • Hours, Minutes, Seconds, World Time, Additional 24 Hour Hand (adjustable), Day / Night Indication
  • Date
  • Power Reserve Indicator
Case
Stainless Steel 40mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] 2021 Jaeger-LeCoultre JLC Master Control Calendar Q4148420 40mm Full Set - $10,495

2021 Jaeger-LeCoultre JLC Master Control Calendar Q4148420 40mm Full Set - $10,495

Jaeger-LeCoultre - Q4148420 · $10,495
A Jaeger-LeCoultre JLC Master Control Calendar watch from 2021, featuring a 40mm case.

  • Condition: Excellent condition with minimal signs of wear
  • Caliber: Calibre 988R self-winding movement
  • Water Resistance: 30m depth rating
  • Case Size: 40mm diameter
Posted at
May 24, 2026, 11:59 AM
Active
View listing on r/WatchExchange
[WTS] 2021 Jaeger-LeCoultre JLC Master Control Calendar Q4148420 40mm Full Set - $10,495

2021 Jaeger-LeCoultre JLC Master Control Calendar Q4148420 40mm Full Set - $10,495

Jaeger-LeCoultre - Q4148420 · $10,495
2021 Jaeger-LeCoultre Master Control Calendar, a 40mm watch featuring a full set.

  • Condition: Excellent condition with minimal signs of wear
  • Case size: 40mm
  • Year: 2021
Posted at
May 21, 2026, 10:24 PM
Active
View listing on r/WatchExchange
[WTS] 2003 Jaeger-LeCoultre Master Control Ultra Thin ref. 145.8.79 - Full Set

2003 Jaeger-LeCoultre Master Control Ultra Thin ref. 145.8.79 - Full Set

Jaeger-LeCoultre - 145.8.79 · $4,150
A 2003 Jaeger-LeCoultre Master Control Ultra Thin ref. 145.8.79 with a 34mm stainless steel case and silver dial.

  • Condition: Very light wear, super clean
  • Case material: Stainless steel
  • Diameter: 34 mm
  • Lug width: 17 mm
Posted at
May 17, 2026, 5:23 PM
Active
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[WTS] 2001 Jaeger-LeCoultre Master Control Réserve De Marche ref. 140.8.93.S

2001 Jaeger-LeCoultre Master Control Réserve De Marche ref. 140.8.93.S

Jaeger-LeCoultre - 140.8.93.S · $5,700
This is a 2001 Jaeger-LeCoultre Master Control Réserve De Marche watch with a stainless steel case, black dial, Super-LumiNova lume, and automatic movement. It comes with instructions, guarantee booklet, microfiber cloth, stylus, and guarantee card dated June 2001.

  • Condition: normal wear, some moderate scratching on the bezel at 12 o'clock
  • Case material: stainless steel
  • Case diameter: 37 mm
  • Lug width: 19 mm
Posted at
May 17, 2026, 5:20 PM
Active
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[WTS] Jaeger LeCoultre Master Control Date Q1548470 176.8.40.S

Jaeger LeCoultre Master Control Date Q1548470 176.8.40.S

Jaeger LeCoultre - Q1548470 176.8.40.S · $4,475
  • Case size: 40mm diameter
  • Payment methods: Zelle, Venmo, or Western Union accepted
Posted at
May 16, 2026, 1:43 PM
Active
View listing on r/WatchExchange
[WTS] 2021 Jaeger-LeCoultre JLC Master Control Calendar Q4148420 40mm Full Set - $10,495

2021 Jaeger-LeCoultre JLC Master Control Calendar Q4148420 40mm Full Set - $10,495

Jaeger-LeCoultre - Q4148420 · $10,495
This is a Jaeger-LeCoultre JLC Master Control Calendar watch, produced in 2021. It features a 40mm case and has been thoroughly tested.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2021
  • Size: 40mm
Posted at
May 14, 2026, 1:16 PM
Active
View listing on r/WatchExchange
Jaeger-LeCoultre Master Control R�serve de Marche Silver Dial 140.8.38.S

Jaeger-LeCoultre Master Control R�serve de Marche Silver Dial 140.8.38.S

Jaeger-LeCoultre - 140.8.38.S · $4,030
Men's Jaeger-LeCoultre Reserve De Marche Master Control watch with a silver dial, date function, and power reserve. The case is made of stainless steel.

  • Condition: 90%
  • Case Size: 37mm
  • Movement Type: Mechanical Automatic
Posted at
Feb 6, 2025, 9:44 AM
Active
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Jaeger-LeCoultre MASTER CONTROL DATE ROSE GOLD SILVER DIAL Q1542520 FULL SET

Jaeger-LeCoultre MASTER CONTROL DATE ROSE GOLD SILVER DIAL Q1542520 FULL SET

Jaeger-LeCoultre - Q1542520 · $8,425
This is a 39mm Jaeger LeCoultre Master Control Date in 18K rose gold with a silver dial, featuring a dark brown alligator leather strap and a rose gold tang buckle. The watch includes two additional straps and comes with its original packaging, manual, papers, and warranty certificate.

  • Condition: Excellent
  • Material: 18K rose gold
  • Dial color: silver
  • Strap material: dark brown alligator leather
Posted at
Jan 24, 2025, 9:43 PM
Active
View listing on RolexForums