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Greubel Forsey Redefines Haute Horlogerie with the New GMT Balancier Convexe

JUNE 05 2025    |    Novelties

Greubel Forsey unveils its new GMT Balancier Convexe. As the Earth takes centre stage within a newly reimagined amphitheatre, the hours, minutes, seconds, second time zone, and universal time indications become both companions and spectators to its quiet revolution.

The new GMT Balancier Convexe replaces its predecessor entirely – not as a variation, but as a complete reinterpretation. With a redesigned case, an integrated power reserve, and enhanced ergonomics, it becomes the purest expression of our GMT complication to date – and the only GMT model in our current collection.

A refined evolution
– Titanium Convexe case now more compact at 42.90 mm for improved wearability.
– New 72-hour power reserve indicator seamlessly integrated into the dial.

Technical enhancements
– 496 components, 73 more than its predecessor.
– Inclined escapement suspended beneath polished steel bridge.
– Real-time rotating globe in layered amphitheatre.
– Sapphire disc on caseback with 24 cities, La Chaux-de-Fonds replaces Paris.

Exclusivity
– Limited to 22 pieces worldwide.

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Greubel Forsey GMT Balancier Convexe

Greubel Forsey GMT Balancier Convexe

Technical Specifications

Functions Hours, minutes, small seconds, second time zone (GMT), rotating terrestrial globe with universal time, day/night indicator, engraved sapphire disc with cities of 24 time zones, summer/winter time, 72-hour power reserve indicator, 30° inclined balance wheel system
Movement Dimensions Overall diameter: 37.80mm
Thickness: 13.80mm
Number of Parts Movement: 496 parts
Escapement platform: 59 parts
Number of Jewels 72
Olived-domed jewels in gold chatons
Power Reserve 72 hours
Barrels Two series-coupled fast-rotating barrels (1 turn in 3.2 hours), one with slipping spring
Balance Wheel In-house variable-inertia with 6 gold mean-time screws (12.60mm diameter)
Frequency 21,600 vibrations/hour
Case Dimensions Caseband diameter: 42.90mm
Bezel diameter: 44.90mm
Case height: 15.10mm
Height on sapphire crystals: 17.60mm
Water Resistance 5 ATM / 50m / 164ft (NIHS 92-20 / ISO 22810:2010)
Strap Options Hand-sewn textured rubber or rubber with text in relief
Optional: 3-row titanium bracelet with folding clasp

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JUNE 16 2025    |    Novelties

Traditional craftsmanship with modern appeal - Moritz Grossmann TREMBLAGE Green

Moritz Grossmann proudly unveils the TREMBLAGE Green, a limited edition timepiece that redefines elegance through heritage craftsmanship and a bold new aesthetic. Available in rose gold and white gold, with only 8 pieces of each, this extraordinary watch is a tribute to the art of traditional engraving and the timeless beauty of horological design.

At the heart of the TREMBLAGE Green lies a dial crafted from German silver, meticulously hand-engraved using the rare tremblage technique. This centuries-old method creates a fine, matte texture that diffuses light with a soft, meditative glow. The dial is finished in a deep, complex green—symbolizing renewal, harmony, and depth—making it a standout piece that remains understated and refined.

Encased in a 41 mm case of 750/000 rose or white gold, the watch is powered by the in-house calibre 100.1, a hand-wound movement visible through a sapphire crystal case back. Every component is hand-finished, from the Glashütte ribbing and polished bevels to the engraved balance cock. The watch features hours, minutes, and a small seconds display with a stop-second function, all operated via a gold crown and lateral pusher.

Completing the look is a hand-stitched dark brown alligator leather strap, offering both comfort and sophistication. The TREMBLAGE Green is not just a timepiece—it is a celebration of “Schönstes deutsches Handwerk” (the finest German craftsmanship), brought to life with modern sensibility and timeless appeal.

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JULY 02 2024    |    Novelties

A timepiece unveiling the aesthetic technique of a finely hand-decorated movement.

For the final titanium 41mm, three-hands limited edition with rubber strap, Romain Gauthier presents a timepiece with a partially open dial, unveiling a portion of the entirely hand-decorated movement.

C by Romain Gauthier Titanium Editions are modern timepieces with a sporty design that encloses a titanium movement whose hand-finishing prowess can be admired on the case-back. This time Romain wanted the stunning features of this movement to be easily visible just by looking at the watch, even when worn. By opening the dial, he reveals the beauty of the mechanism inside, bringing a technical aesthetic to this timepiece, which until now has featured a full dial.


This partially open dial is particularly reminiscent of the history of the brand's very first timepiece, the Prestige HM, which evolved to reveal the seconds-hand mechanism on its sister caliber, the Prestige HMS.

Unveiled in 2021, the C by Romain Gauthier caliber was the result of more than 16 years of know-how acquired through the brand's development and its manufacture, while reflecting Romain's creative freedom with a modern and youthful design.

Technical in nature, casual in style and free in spirit, the Freedom collection has enabled the creation of this contemporary caliber. The significance of C by Romain Gauthier lies in its creative approach to reinforce the notions of continuity with its concept and design, in reference to the Continuum. Reflecting a vision of the future for a timepiece which is part of Romain Gauthier's philosophy, and which opens the door to new horizons.

During its creation, it was clear to Romain that the case had to harmonize with the movement. It had to be contemporary and uncluttered. But not only that – comfort, ergonomics and the choice of materials also contributed to the design of this timepiece with the decision to use Grade 5 titanium. The dial, in sapphire for this edition, adds to the consistency of the piece and evokes a sense of continuity, as no circle completes the time indication.

Inspired by the finger bridges style, the design of the movement follows the watchmaking history of the Vallée de Joux but with a modern approach, reflecting Romain’s vision of the evolution of tradition.

Romain Gauthier presents the sixth edition of the caliber in titanium in a limited edition of 88-pieces and engraved “1 of 88” on the back of each movement.

 

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JUNE 25 2024    |    Novelties

Back in sleek anthracite: Armin Strom unveils the One Week Manufacture Edition

Biel/Bienne, Switzerland, 26 June 2024: Following the inaugural redesigned One Week First Edition that made its debut in 2023, Armin Strom unveils a new version of the successor to its first-ever manufacture movement with the One Week Manufacture Edition. The highly architectural openworked movement, housed in a sleek and sporty steel case with an integrated bracelet, is now presented in a range of grey and anthracite hues. Limited to 100 pieces, the One Week Manufacture Edition foregoes colour to bring out the beauty of its uniquely constructed manual calibre.

15 years ago, independent watchmaking brand Armin Strom took a major leap that would forever change its trajectory. Realising that the path to true independence lies in mastering every step of the process, it established its very own manufacture in Biel. A year later, the first timepiece produced by its vertically integrated manufacture was unveiled: the One Week. Entirely developed and manufactured in-house and designed with symmetrical harmony in mind, it stood out thanks to its unique movement architecture featuring two barrels that together provide a seven-day power reserve. This milestone marked the beginning of many new calibres and innovations by the Armin Strom manufacture, showcasing their dedication to the science of movement and garnering the admiration and respect of even the most discerning and seasoned collectors.

The new One Week Manufacture Edition completely reimagines this milestone calibre in line with the brand’s recent bolder, more three-dimensional approach to calibre design, all in a sleek and serene execution that further highlights its ingenuity and uniqueness. The mainplate, bridges and parts, visible on the dial thanks to the openworked movement design, are anthracite PVD coated for a striking look.

As Armin Strom founder Serge Michel notes: “Collectors who missed the opportunity to get a first edition of the redesigned One Week will now have another chance. The Manufacture Edition of the new One Week will be limited to 100 pieces.”

Sporty yet classy, this model exudes calmness and serenity with its anthracite tones and the symmetrical harmony of its in-house movement.

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