Jaeger-LeCoultre introduces a series of novelties at the 2026 Watches and Wonders industry fair in Geneva – check it out below
La Vallée des Merveilles
La Vallée des Merveilles is a new capsule collection focused on celebrating the variety of nature from “the world’s last pristine places to the artistry of the most beautiful gardens.” This first collection hones in on the nature of Hawaii and Japan, with three new editions of the Reverso One series.
Set in cases of 18K (750/1,000) pink gold or white gold, the watchmaking behind the pieces focuses on artistic crafts, such as enamelling, paillonnage, gem-setting and lacquer work. They are offered in limited editions of 20 pieces each – see the details below:
The Reverso One ‘Hibiscus Syriacus’

Inspired by Hawaii, the timepiece depicts a hummingbird sipping nectar from a blue hibiscus flower. The scene timepiece is set using two separate levels the bird and flowers executed entirely in Grand Feu champlevé enamel fired at up to 800° Celsius. The pistil of the lower hibiscus flower is accentuated with 24K gold-leaf (999/1,000) paillonné enamel.
The case is an 18k pink gold (750/1,000) and features 335 grain-set diamonds and a shimmering blue alligator strap which matches the colour of the blue lacquer. There is also an option for more of a jewellery look to the piece through a 18K pink gold (750/1,000) bracelet set with an additional 384 diamonds.
Detailing on this pieces through the usage of multiple metal oxide pigment and multiple layers of opaque and translucent enamel, with a gradient effects created using 10 different enamel colours.
The Reverso One ‘Hibiscus Rosa’

In a second homage to Hawaii’s tropical beauty, the second timepiece has a pink gold case featuring a hummingbird poised over a vivid red hibiscus flower, an emblematic symbol of Hawaii.
Using similar techniques to the other Hawaiian varient, this piece also uses the snow-setting technique
which involves individually setting 489 diamonds of 9 different sizes directly into the metal, each held by microscopic beads, allowing the stones to appear randomly scattered.
This piece has an 18K pink gold (750/1,000) bracelet set with an additional 384 diamonds, requiring additional 60 hours of gem-setting work. The watch can also be delivered with a shiny red alligator strap.
The Reverso One ‘Sakura’

The third piece celebrates natural grace and beauty inspired by Japan’s vast landscapes, rich biodiversity. The design on the back features a white, red-crowned crane stands at the edge of a lake beneath a branch of cherry blossoms.
Once again using the techniques of it’s capsule counterparts, this piece also includes the setting of the 269 diamonds and 395 sapphires represents a total of 125 hours of gem-setting work. The watch is presented on a shiny blue alligator strap that complements the blue-green tones of the case decoration.
Master Grande Tradition Tourbillon Jumping Date
The Calibre 978 made its debut 20 years ago and three years later, in 2009, the Manufacture celebrated this calibre winning the first modern chronometry competition. This edition includes an open-worked dial and features a 42 mm 18K Pink Gold (750/1000) case comprising of 60 components. This new tourbillon has a 24-hour disc aesthetic, elevated by 18K White Gold (750/1,000) bridges.
Master Hybris Artistica Ultra Thin Minute Repeater
This piece is an artistic reinterpretation of the Maison’s ultra-thin calibre that unites a minute repeater with a flying tourbillon. It was conceived as the thinnest automatic minute repeater tourbillion where the the minute repeater forms an intrinsic part of the architecture. The skeletonised movement and sapphire bridges means you can appreciate the calibre’s 537 components. The automatic calibre is ultra-thin at 4.7mm thick, in a 8.25 mm high by 41.4 mm in diameter case. The case in mention is made up of 60 parts as a first exclusive tailoring for Calibre 362.
Master Hybris Inventiva Gyrotourbillon À Stratosphère
This is a groundbreaking piece for the watchmakers as its three axes cover 98 percent of possible positions, as this piece focused on “guaranteeing an unprecedented precision.” It comprises of 189 components and the three axis tourbillon is incredibly light weight at just 0.78 grams. The Métiers Rares finishes highlight the Calibre 178 through the use of guillochage, enamel and lacquer.
Reverso Tribute Enamel Watches

The final four pieces of the collection celebrating Japan’s famous 19th century artist Hokusai are: Rōben Waterfall at Ōyama in Sagami Province; Kiyotaki Kannon Waterfall at Sakanoshita on the Tōkaidō; Yōrō Waterfall in Mino Province; and The Falls at Aoigaoka in the Eastern Capital.

Continuing the celebration of Japan, they unveiled four 10-piece limited editions which have been hand-decorated by the artisans of Jaeger-LeCoultre’s Métiers Rares atelier. The pieces are grand feu enamel miniatures of Hokusai’s Waterfalls with hand-guilloché and enamel dial. The case backs includes miniature-paintings representing almost 100 hours of work for a single watch.
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