Jaeger-LeCoultre Duometre Duomètre à Quantième Lunaire 40.5 White Gold / Open

Reference 6043420

About this watch

The Jaeger-LeCoultre Duomètre à Quantième Lunaire 40.5 White Gold / Open is a masterpiece that captures the imagination of watch enthusiasts and collectors alike. This stunning watch combines elegance, sophistication, and groundbreaking watchmaking technology. The round case, crafted from luxurious white gold, gives it a timeless elegance that can easily transition from formal events to casual outings. The silver dial is a canvas of sophistication, featuring mixed indexes that add a unique touch. One of the standout features of this watch is its open case back, allowing you to marvel at the intricate movement inside. Seeing the Jaeger-LeCoultre caliber 381 in action is nothing short of mesmerizing. The craftsmanship that goes into creating this movement is a testament to the brand's dedication to excellence. With a frequency of 21,600 vibrations per hour and a 50-hour power reserve, the caliber 381 ensures that the timekeeping is as precise as it is reliable. Whether you're timing a race or simply checking the time, you'll appreciate the accuracy that this movement provides.

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Key Features

Hand-wound Jaeger-LeCoultre Caliber 381 Movement
Dual-Wing Concept with Independent Power Reserves
Foudroyante Seconds Function for Precise Timing
50-Meter Water Resistance and Sapphire Crystal
Open Case Back for Viewing the Movement
High-Quality Leather Strap for Comfortable Wear

Specifications

Brand

Jaeger-LeCoultre

Family

Duometre

Model

Duomètre à Quantième Lunaire 40.5 White Gold / Open

Reference

6043420

Movement

381

Movement Features

Hours, Minutes, Seconds, Foudroyante Seconds
Date
Moonphase

Case

White Gold 40.5mm

Dial Color

Silver

Crystal

Sapphire

Water Resistance

Current Listings

Jaeger-LeCoultre Duometre Quantieme Lunaire 18k rose gold 42 mm Complete Jaeger

Jaeger-LeCoultre - Q6042422 · $24,500

This Jaeger-LeCoultre Duometre Quantieme Lunaire is a 42mm watch made of 18k rose gold. It features a complete set with original box and papers along with documentation for the manufacturer's service.

Condition: practically unused, little to no scratches
Shipping: overnight shipping, insured, signature confirmed
Service History: serviced by manufacturer almost three years ago (document available)
Box Condition: leather inside flacking

Posted at

Dec 17, 2025, 8:12 PM

Active

View listing on r/WatchExchange

Jaeger-LeCoultre Duometre Quantieme Lunaire 18k rose gold 42 mm Jaeger Mint Condition

Jaeger-LeCoultre - Q6042422 · $23,750

A Jaeger-LeCoultre Duomètre Quantième Lunaire in 18k rose gold, featuring a 42mm case. This watch is almost unused and comes with its original box and papers.

Condition: Mint Condition
Case material: 18k rose gold
Case size: 42mm diameter
Strap: black leather

Posted at

Dec 13, 2025, 3:41 PM

Active

View listing on r/WatchExchange

Jaeger-LeCoultre Duometre Quantieme Lunaire 18k rose gold 42 mm Complete Jaeger

Jaeger-LeCoultre - Q6042422 · $23,750

A Jaeger-LeCoultre Duometre Quantieme Lunaire in 18k rose gold with a 42mm case. The watch features a completely serviced movement.

Condition: pristine condition, little to no scratches
Case diameter: 42mm
Material inside the box condition: flaking
Strap color: black

Posted at

Dec 10, 2025, 7:53 PM

Active

View listing on r/WatchExchange

Jaeger-LeCoultre Duometre Quantieme Lunaire 18k rose gold 42 mm Complete Jaeger

Jaeger-LeCoultre - Q6042422 · $23,750

This Jaeger-LeCoultre Duometre Quantieme Lunaire is a high-end watch made from 18k rose gold with a 42mm case. It features a complete set of original box and papers, including documents for the manufacturer's service. The watch comes with a leather strap in black and a push pin.

Condition: practically unused, little to no scratches
Case diameter: 42mm
Service history: serviced by manufacturer almost three years ago

Posted at

Dec 7, 2025, 9:00 PM

Active

View listing on r/WatchExchange