Master Control Geographic Stainless Steel / Silver

Reference Q4128421 (aka: 4128421)

Reference only — not currently in stock

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.

Brand

Jaeger-LeCoultre

Model

Master Control Geographic Stainless Steel / Silver

Reference

Q4128421 (aka: 4128421)

Category

Master Control

Year introduced

2025

Movement

Jaeger-LeCoultre caliber 939AA Hours, Minutes, Seconds, World Time, Additional 24 Hour Hand (adjustable), Day / Night Indication | Date | Power Reserve Indicator

Case material

Stainless Steel

Case diameter

40 mm

Dial color

Silver

Crystal

Sapphire

Case back

Open

Water resistance

50 m

Lugs

20

Complications

Date, Day