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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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NOVEMBER 12 2025    |    Novelties

Neo Digiteur: Chronoswiss Revives the Mechanical Digital Icon

Chronoswiss proudly unveils the Neo Digiteur, a bold reinvention of an icon that first challenged convention two decades ago. Originally introduced in 2005 by founder Gerd-Rüdiger Lang, the Digiteur was a mechanical digital timepiece—a watch without hands—that defied expectations and celebrated horological artistry. Today, the Neo Digiteur returns sharper, stronger, and more modern than ever, crafted in stainless steel and infused with the pioneering spirit of its predecessor.

The design is architectural and tailored, with a rectangular case measuring 48 by 30 millimeters. Its sculptural lines are accentuated by sandblasted and polished finishes, while a reimagined onion-style crown ensures both elegance and ergonomics. At its heart lies a rare complication: a jumping hour regulator without hands. Time is displayed through three apertures—the jumping hour at twelve o’clock, digital minutes at center, and running seconds at six o’clock—creating a mechanical digital regulator that feels futuristic yet deeply analog.

Powering this display is the hand-wound Chronoswiss Caliber C.85757, beating at 3 Hz and offering a 48-hour power reserve. Developed entirely in-house, the movement features artisanal details such as hand-guilloché bridges and a sapphire crystal caseback that pays tribute to historic Fleurier calibers. Two limited editions express distinct personalities: Neo Digiteur Granit with an anthracite dial and Neo Digiteur Sand with a warm 4N sandblasted finish. Each version is limited to just 99 pieces, making the Neo Digiteur not a reproduction, but a true reinvention—a collector’s piece and a statement of mechanical artistry.

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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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AUGUST 13 2025    |    Novelties

The Golden Era Begins: Mirrored Force Resonance in Rose Gold

Armin Strom proudly unveils a new expression of its horological mastery with the launch of the Mirrored Force Resonance in 18K Rose Gold. This limited edition marks a significant milestone for the brand’s most iconic timepiece, blending technical innovation with timeless elegance.

A First in Rose Gold

For the first time, Armin Strom’s signature case is crafted from 18K rose gold, offering a warm and luxurious aesthetic. The 43 mm case features alternating brushed and polished finishes, enhancing its sculptural presence. Beneath the sapphire crystal, a bold black off-centre dial showcases a handcrafted sunray guilloché pattern, created using a traditional rose engine lathe. A chapter ring with circular finishing adds depth and texture, while a dark grey Alcantara strap completes the refined look.

Resonance Engineered for Performance

At the heart of this timepiece lies the Caliber ARF21, a manually wound movement that exemplifies Armin Strom’s pioneering work in resonance watchmaking. The patented Resonance Clutch Spring synchronizes two independent balance wheels, enhancing precision and chronometric stability. A pusher at 2 o’clock resets the twin seconds counters, offering a visual demonstration of the resonance mechanism’s accuracy.

Craftsmanship Without Compromise

Every surface of the movement is meticulously hand-finished, visible through sapphire crystals on both sides of the case. Techniques such as hand-beveling, black polishing, perlage, and circular graining highlight Armin Strom’s commitment to haute horology. Each watch is assembled twice to ensure mechanical integrity and flawless finishing.

Limited Edition of 15 Pieces

This exclusive release is limited to just 15 pieces, each priced at CHF 88,000. It represents a rare opportunity to own a timepiece that embodies both technical brilliance and artisanal beauty.
A Statement from Claude Greisler

“The introduction of an 18-karat rose gold case marks a significant milestone for the Mirrored Force Resonance series. This choice of material not only enhances the aesthetic appeal but also underscores our commitment to offering a diverse range of options to our clientele,” said Claude Greisler, Co-Founder and Master Watchmaker at Armin Strom.

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SEPTEMBER 19 2025    |    Novelties

Armin Strom Unveils the Tribute 1 Green: A Celebration of Nature’s Elegance

Armin Strom introduces the Tribute 1 Green, a refined dress watch that pays homage to the timeless beauty of nature. Limited to just 50 pieces, this new release brings forest-inspired tones to the brand’s most elegant collection, combining artisanal craftsmanship with modern mechanical innovation.

A Forest-Inspired Masterpiece

The Tribute 1 Green features a striking off-centre dial in forest green, adorned with a hand-engraved grain d’orge guilloché pattern and crisp white Roman numerals. A frosted subdial adds depth and texture, while the green Alcantara leather strap with off-white stitching completes the composition with understated sophistication. The openworked motor barrel, secured by a polished finger bridge in stainless steel, echoes the case design and showcases Armin Strom’s signature fusion of symmetry and mechanical artistry. The 38 mm stainless steel case, with anti-reflective sapphire crystals front and back, ensures optimal clarity and elegance.

Exceptional Performance

At the heart of the Tribute 1 Green is the manual-winding Manufacture Caliber AMW21, offering an impressive 100-hour power reserve. This is made possible by the brand’s patented equal force barrel, designed for efficiency and compactness. Operating at 25,200 vibrations per hour (3.5 Hz), the movement reflects Armin Strom’s technical mastery, with 97% of components produced in-house.

Haute Horlogerie, Hand-Finished

Every Tribute 1 Green is a testament to traditional watchmaking. The case features brushed and polished surfaces, finished entirely by hand. Inside, the movement is decorated with Geneva stripes, circular graining, and a mirror-polished finger bridge, all executed by Armin Strom’s skilled artisans.

True to the brand’s commitment to excellence, each watch is assembled twice—once for mechanical precision and again after decoration—to ensure the highest standards of performance and aesthetics.  

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