Precision has always been a cornerstone of the work done inside the Jaeger-LeCoultre workshops, as the brand has doggedly pursued accurate mechanical timekeeping for the best part of nearly two centuries. While last year saw a revitalisation of the iconic Reverso, the new watches from Jaeger-LeCoultre return its focus to this central tenet of the maison at Watches & Wonders in 2024, courtesy of three highly sophisticated Duomètre references.
Originally launched in 2007, the Duomètre concept was conceived by Jaeger-LeCoultre watchmakers attempting to resolve the problem of complications (e.g. stopwatch) excessively/inconsistently impacting a watch’s power reserve.
In response, they created a mechanism that featured two different mainsprings connected by a single regulating organ. In English? One power source for the time-telling component; and another for the complication, all whilst maintaining perfect synchronisation.
RELATED: The 11 Best Jaeger-LeCoultre Watches To Buy In 2024
To make a car-related comparison: picture a hypercar with a different motor for each of the four wheels, all working in tandem to deliver an optimal driving experience. Jaeger-LeCoultre’s Duomètre is kinda like that, with the concept serving as the springboard for the entire 2024 collection.
Highlights From The 2024 Jaeger-LeCoultre Collection
Jaeger-LeCoultre Duomètre Heliotourbillon Perpetual
![Jaeger-LeCoultre watches 2024](https://www.bosshunting.com.au/cdn-cgi/imagedelivery/izM8XxyLg9MD6py1ribxJw/www.bosshunting.com.au/2024/03/JLC_2024_THEPRECISIONMAKER_Q6202420_DUO_HELIO_CLOSEUP1_1-1.jpg/w=1200,h=1200)
Featuring both a grand date display and perpetual calendar, the star of the Duomètre Heliotourbillon Perpetual show is its spinning triple-axis tourbillon. By rotating on a trio of different axes, the tourbillon (which weighs just 0.7g) appears like a spinning top as it ticks away at 28,800vph; and is the beating heart of the brand-new manually wound, cylindrical hairspring-equipped Calibre 388.
As befits an uber-complicated release of this magnitude, the watch is powered by two mainsprings — each individually generating 50 hours of reserve power.
![](https://www.bosshunting.com.au/cdn-cgi/imagedelivery/izM8XxyLg9MD6py1ribxJw/www.bosshunting.com.au/2024/03/2024_THEPRECISIONMAKER_Q6202420_WRISTSHOT4_4x5_AdobeRGB.jpg/w=960,h=1200)
![](https://www.bosshunting.com.au/cdn-cgi/imagedelivery/izM8XxyLg9MD6py1ribxJw/www.bosshunting.com.au/2024/03/JLC_2024_Duometre-Heliotourbillon-Perpetual_Q6202420_SAVOIRFAIRE5_4.5_4800x5625px.jpg/w=960,h=1200)
This debut mechanism is contained within a 34-part rose gold case that measures 44mm in diameter, standing at14.7mm in thickness — fair proportions for such a complicated watch.
Aside from the tourbillon, the majority of the dial is silvered and is able to display an enormous amount of information: notably including the power reserve of the former complication, and of the watch itself.
Jaeger-LeCoultre Duomètre Quantième Lunaire
![Jaeger-LeCoultre watches 2024](https://www.bosshunting.com.au/cdn-cgi/imagedelivery/izM8XxyLg9MD6py1ribxJw/www.bosshunting.com.au/2024/03/2024_THEPRECISIONMAKER_Q604848J_DUO_QL_CLOSEUP1_1-1.jpg/w=1200,h=1200)
The Jaeger-LeCoultre Duomètre Quantième Lunaire represents an innovation for the Duomètre range, as it’s the first reference in the collection to ever be cased in stainless steel.
Arriving with a case that measures 42.5mm in diameter and 13.05mm in thickness, the case is inspired by the so-called savonette pocket watches of the 1800s, which were given this nickname thanks to their resemblance to small soap discs.
![](https://www.bosshunting.com.au/cdn-cgi/imagedelivery/izM8XxyLg9MD6py1ribxJw/www.bosshunting.com.au/2024/03/2024_THEPRECISIONMAKER_-Q604848J-_DUOMETRE_QUANTLUNAIRE_SAVOIRFAIRE4_AdobeRGB_4.5_4800x5625px.jpg/w=960,h=1200)
![](https://www.bosshunting.com.au/cdn-cgi/imagedelivery/izM8XxyLg9MD6py1ribxJw/www.bosshunting.com.au/2024/03/2024_THEPRECISIONMAKER_-Q604848J-_DUOMETRE_QUANTLUNAIRE_SAVOIRFAIRE3_AdobeRGB_4.5_4800x5625px.jpg/w=960,h=1200)
The deep blue of the dial is inspired by sectors on vintage Jaeger-LeCoultre watches; but laid out so as to show the time, moonphases, date (and even a 1/6th of a second display) in as symmetrical a fashion as possible.
As with all of the new Duomètre releases, the watch powering this Quantième Lunaire is the manually wound Calibre 381: equipped with two mainspring barrels, for the time-telling and complicated elements of the watch respectively.
Jaeger-LeCoultre Duomètre Chronograph Moon
![Jaeger-LeCoultre watches 2024](https://www.bosshunting.com.au/cdn-cgi/imagedelivery/izM8XxyLg9MD6py1ribxJw/www.bosshunting.com.au/2024/03/2024_THEPRECISIONMAKER_Q622656J_DUO_CHRONOMOON_CLOSEUP2_4-5.jpg/w=960,h=1200)
![Jaeger-LeCoultre watches 2024](https://www.bosshunting.com.au/cdn-cgi/imagedelivery/izM8XxyLg9MD6py1ribxJw/www.bosshunting.com.au/2024/03/2024_THEPRECISIONMAKER_Q622252J_DUO_CHRONOMOON_CLOSEUP2_4-5.jpg/w=960,h=1200)
Finally, at this year’s Jaeger-LeCoultre presentation, we have the Duomètre Chronograph Moon: offering a play of complicated contrasts, with an ultra-accurate 1/6th of a second chronograph and moonphase display.
Offered in both platinum with an opaline copper-colour dial (the word “salmon” comes to mind) or pink gold with a silver opaline dial, the case measures 42.5mm in diameter and 14.2mm in thickness and is paired with a handsome alligator leather strap.
![](https://www.bosshunting.com.au/cdn-cgi/imagedelivery/izM8XxyLg9MD6py1ribxJw/www.bosshunting.com.au/2024/03/2024_THEPRECISIONMAKER_Q622656J_DUO_CHRONOMOON_CLOSEUP4_1-1.jpg/w=1200,h=1200)
At the heart of both references lies the manually wound Calibre 391, which offers the classic Duomètre twin 50-hour power reserve indicators. It’s thanks to this movement that the watchmakers at Jaeger-LeCoultre have been able to deliver monopusher chronographs in 2024, as well as moonphases (which chart day and nighttime phases separately).