Jaeger-LeCoultre Master Control Master Control Geographic Stainless Steel / Silver
Reference Q4128421
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
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Jaeger Lecoultre Master Control Q4018420 ($6000 OBO)
This Jaeger Lecoultre Master Control Q4018420 is a well-maintained timepiece with an upgraded movement, featuring a free-spring balance, silicon hairspring, and 70 hour power reserve. It comes with its original box and a printout from JLC showing the watch's warranty status until 2030.
- Condition: Pre-owned with some wear to factory strap
- Movement: 899 AC movement (upgraded)
- Power Reserve: 70 hours
- Warranty Status: Under warranty until 2030
![[WTS] JLC Master Control 18k Rose Gold Quartz 145.2.31](https://preview.redd.it/vcg1vmduxvlf1.jpg?width=640&crop=smart&auto=webp&s=9640581af32b9e22b82913d727e4592ce92b4099)
JLC Master Control 18k Rose Gold Quartz 145.2.31
This rose gold JLC Master Control is a quartz chronograph watch with a 34mm case size, featuring original strap and buckle.
- Condition: Preowned with hairline scratches throughout and marks on the crystal under strong magnification
- Case Size: 34mm diameter
- Movement: Quartz
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Jaeger LeCoultre Master Control Calendar 140.8.87 $4,500
A classy and refined Jaeger LeCoultre Master Control Calendar with a 37mm case size, applied dagger indices, Arabic numerals at 12, 3, and 9, and running seconds subdial at 6 o'clock. The watch features two off-center windows showing the day of the week and month, as well as a red half moon indicating the date.
- Condition: Preowned - Good
- Box And Papers: true
- Service History: 2011 service papers and invoice
- Included Accessories: Double box,Service papers,Pusher,Manuals,Guarantee Booklet,Deployant Butterfly Clasp,Original leather strap,Alligator leather strap,Double Hornback leather strap
Jaeger-LeCoultre Master Control R�serve de Marche Silver Dial 140.8.38.S
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

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