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Jaeger-LeCoultre - Master Ultra Thin - Q1378421

Master Ultra Thin Réserve de Marche Stainless Steel / Silver / Alligator

Master Ultra Thin
Master Ultra Thin

Main

Brand

Jaeger-LeCoultre

Family

Master Ultra Thin

Reference

Q1378421

Name

Master Ultra Thin Réserve de Marche Stainless Steel / Silver / Alligator

Movement

Jaeger-LeCoultre caliber 938

Functions

Hours, Minutes, Small Seconds | Date | Power Reserve Indicator

Case

Glass

Sapphire

Back

Open

Shape

Round

Diameter

39mm

Height

8.95mm

Water Resistance

50M

Dial

Color

Silver

Finish

Sunburst

Indexes

Stick / Dot

Hands

Dauphine

Description

The Jaeger-LeCoultre Master Ultra Thin Power Reserve Q1378421 debuted in . This elegant stainless steel dress watch features a 39 mm case with polished and satin-finished surfaces, framing a silvered sunray dial. Refined elements include elongated hour markers, dauphine hands, and three recessed opaline subdials for the power reserve, date, and small seconds functions—each laid out in a symmetrical and harmonious arrangement. Inside ticks the automatic caliber 938, developed and manufactured in-house by Jaeger-LeCoultre. With a silicon escapement and a single barrel, it delivers a 70-hour power reserve. The Q1378421 is paired with a light brown leather strap fitted with a stainless steel double folding clasp.

Our customer's reviews

More than +1000 reviews here

November 2, 2025

From Mykonos with gratitude, The Vacheron Constantin Overseas Chronograph I received from Chrono 10:10 is far beyond a simple purchase, it is an experience that combines flawless service, transparent communication, and the rare feeling of dealing with...From Mykonos with gratitude, The Vacheron Constantin Overseas Chronograph I received from Chrono 10:10 is far beyond a simple purchase, it is an experience that combines flawless service, transparent communication, and the rare feeling of dealing with

Jane Booper

Chrono24

August 16, 2025

From Mykonos with gratitude, The Vacheron Constantin Overseas Chronograph I received from Chrono 10:10 is far beyond a simple purchase, it is an experience that combines flawless service, transparent communication, and the rare feeling of dealing with...From Mykonos with gratitude, The Vacheron Constantin Overseas Chronograph I received from Chrono 10:10 is far beyond a simple purchase, it is an experience that combines flawless service, transparent communication, and the rare feeling of dealing with

Richard

Google

August 13, 2025

re4444

From Mykonos with gratitude, The Vacheron Constantin Overseas Chronograph I received from Chrono 10:10 is far beyond a simple purchase, it is an experience that combines flawless service, transparent communication, and the rare feeling of dealing with...

Jane Cooper

Google

July 14, 2025

From Mykonos with gratitude, The Vacheron Constantin Overseas Chronograph I received from Chrono 10:10 is far beyond a simple purchase, it is an experience that combines flawless service, transparent communication, and the rare feeling of dealing with...From Mykonos with gratitude, The Vacheron Constantin Overseas Chronograph I received from Chrono 10:10 is far beyond a simple purchase, it is an experience that combines flawless service, transparent communication, and the rare feeling of dealing with

Brad Musk

Chrono24
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