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Jaeger-LeCoultre – Two into one
New Models

Jaeger-LeCoultre – Two into one

Thursday, 19 January 2017
By The FHH Journal editors
The FHH Journal editors

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2 min read
Duomètre Chronographe
Pascal O. Ravessoud
Jaeger's impressive Dual-Wing concept is – yet another – feat of high horology and a true differentiator that rightly sets the “Grande Maison” apart. My preference would probably go to the Chronographe with its jumping seconds. A feast for the eyes whenever you look at your watch!
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Jaeger-LeCoultre unveils three new iterations of the Duomètre Sphérotourbillon, Quantième Lunaire and Chronographe. A reminder of the innovative nature of its Dual-Wing concept.

To make a chronograph watch as accurate as a chronometer was the stiff challenge the Jaeger-LeCoultre watchmakers set themselves in developing the first Duomètre. Their secret weapon was the Dual-Wing concept. The Jaeger-LeCoultre Manufacture chose to equip the first model in the Duomètre collection with the chronograph function. This led to the Duomètre Chronographe model, with styling and technical characteristics that immediately earned it a place in the highest echelons of artistic watchmaking.

SIHH Jaeger-LeCoultre Duometre Chronographe
Jaeger-LeCoultre Duometre Chronographe

The first movement to use this new construction principle was the Jaeger-LeCoultre Calibre 380, boasting the major asset of displaying the time with chronometer-worthy precision. In accordance with the Dual-Wing concept, the first gear train is entirely dedicated to the time function (hours, minutes, seconds), while the second gear train is exclusively devoted to the chronograph function and features a 1/6th second jumping seconds. Each of these two mechanisms is powered by its own barrel ensuring a 50-hour power reserve (50 hours for the time, 50 hours for the chronograph). There are no transfers of energy between the two. To simplify use and for aesthetic reasons, a single crown serves to wind both barrels: turning the crown clockwise winds the time, and turning it counter-clockwise winds the chronograph.

This Calibre 380 makes the first Duomètre the very first wrist chronograph watch to operate without a coupling system to handle the stop/start time measurement functions. A single push-piece ensures perfect synchronisation of all five chronograph counters. With its case featuring welded lugs, its opaline magnetite grey dial and its Calibre 380 – the first representative of the Dual-Wing lineage – the Duomètre, brilliantly reinvented the great watchmaking classic.

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A feast for the eyes !

Duomètre Chronographe
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