Introducing the Armin Strom Gravity Equal Force Ultimate Sapphire Blue

JUNE 25 2025 | Novelties

We are thrilled to announce the launch of the Armin Strom Gravity Equal Force Ultimate Sapphire Blue, a masterpiece of Swiss horology that combines technical innovation with glacial elegance.

Design & Aesthetics

The watch features a 41 mm stainless steel case and an off-center transparent sapphire crystal dial with a subdial. The main plate, crafted by Kari Voutilainen, showcases a stunning glacial blue guilloché pattern. The color palette of silvery greys and soft blues is inspired by the serene beauty of Swiss glacial lakes. The watch is completed with a blue nubuck leather strap with ice blue stitching.

Movement & Mechanics

Powered by the proprietary Caliber ASB19, the Gravity Equal Force Ultimate Sapphire Blue is the world’s first automatic movement with a patented stop-work declutch mechanism and Geneva cross. This ensures consistent torque and precision across a 72-hour power reserve. The movement is visible through both the front and back sapphire crystals, and features hand-finished components with perlage, Geneva stripes, and circular graining.

Craftsmanship

Each watch is assembled twice to ensure reliability and refinement. Every component is hand-finished in Biel/Bienne, emphasizing traditional techniques and an open-worked design.

Brand Philosophy

Armin Strom celebrates Swiss horological tradition and innovation. Founded in 1967 and revitalized in 2009 by Claude Greisler and Serge Michel, the brand is known for exposing movement mechanics on the dial side. Their motto, “The Science of Movement,” reflects their dedication to precision and craftsmanship.

Limited Edition

The Gravity Equal Force Ultimate Sapphire Blue is limited to just 25 pieces per year, making it a truly exclusive timepiece.

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Armin Strom Gravity Equal Force Ultimate Sapphire Rose Gold

Armin Strom Gravity Equal Force Ultimate Sapphire Blue

Technical Specifications

Functions	Hours, minutes, seconds, power reserve indicator
Movement	Calibre: ASB19, automatic with micro rotor Jewels: 28 Components: 202 Power reserve: 72 hours (Geneva stop-work) Frequency: 3.5 Hz / 25,200 vph Decoration: - Bridges: bevelled and straight-grained by hand - Mainplate: glacial blue PVD with “grain d’orge” guilloché by Kari Voutilainen - Screws: black-polished - Additional: perlage, Geneva stripes, circular brushing
Dial	Grey-toned off-centre sapphire dial with subdial
Case	Material: stainless steel Diameter: 41 mm Height: 12.65 mm Lug-to-Lug: 48.09 mm Crystal: Sapphire crystal and case back with anti-reflective treatment Water-resistance: 3 ATM
Strap	Material: blue nubuck leather Stitching: ice blue Buckle: stainless steel folding clasp
Reference	ST24-GEF.BLU
Limited Edition	25 pieces per year

JUNE 05 2025 | Novelties

Greubel Forsey Redefines Haute Horlogerie with the New GMT Balancier Convexe

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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NOVEMBER 19 2025 | Novelties

Timeless Precision: Honoring Horological Legacy and Legendary Friendship

Arnold & Son unveils the final chapter of its Constant Force 11 collection with the Constant Force Tourbillon 11 Platinum Edition, a limited series of just 11 pieces. This exceptional timepiece celebrates 260 years of horological heritage, paying homage to the legendary friendship between John Arnold and Abraham-Louis Breguet.

Crafted in platinum (Pt950), the 41.5 mm case houses a dial of hand-guilloché tremblé engraving in 18K yellow gold, inspired by the fern-covered moors of Tintagel, Cornwall—Arnold’s birthplace and the mythical land of King Arthur. The white opal subdial and visible constant force mechanism add depth and elegance.

Powered by the A&S5219 manual winding calibre, the watch features a constant force mechanism, one-minute tourbillon, and true-beat seconds. The engraved plate reads: "To the revered memory of John Arnold and Abraham-Louis Breguet. Friends in their time, legendary watchmakers always."

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SEPTEMBER 13 2024 | Novelties

Chronoswiss Unveils the Next Chapter in Horological Space Exploration

Embark on a journey beyond the stars with Chronoswiss’ latest horological marvels: The Space Timer Deep Space and Space Timer Supernova. At Chronoswiss, the allure of the cosmos has always been more than just a distant fascination - it’s a canvas for innovation and creativity. This year, the journey continues as we push the boundaries of watchmaking with two new models that capture the awe-inspiring vastness of space: the Space Timer Deep Space and the Space Timer Super Nova.

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JUNE 10 2025 | Novelties

Arnold & Son Nebula 40 Steel, Blue Edition Design Philosophy: Radiating Harmony

The watch features a star-shaped arrangement of seven bridges, radiating from the center like a nebula, giving it both structural integrity and visual depth.

The movement is laid out with four lines of symmetry, aligning the barrels, balance, and small seconds for a harmonious aesthetic.

Technical Excellence: A&S5201 Calibre

Dual barrels provide an impressive 90-hour power reserve.

Components are arranged in a kinematic chain around the edge, enhancing both function and form.

The crown mechanism is inverted and placed on the case-back side for symmetry with the first wheel at 9 o’clock.

Aesthetic Details

The lower levels of the movement are treated with a rich blue PVD, contrasted by palladium-finished bridges and components.

Includes horizontal satin brushing on the dial side and Arnold & Son’s signature ‘Rayons de la Gloire’ motif on the reverse.

The 40 mm diameter and 9.10 mm thickness ensure elegance on the wrist.

Strap & Bracelet Options

Available with a blue alligator leather or rubber strap.

Also offered with a three-link steel bracelet that highlights the watch’s symmetry and skeletonized beauty.

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MARCH 28 2024 | Watches and Wonders 2024

Angelus Instrument de Vitesse - 60 Seconds Flat

Instrument de Vitesse, a new opus in the La Fabrique collection, revives the golden age of timed races. This single push-piece chronograph seems to have been plucked from the dashboard of a vintage GT car. It is equipped with a single timing hand – the centre seconds hand – and can time a maximum of one minute. With its sleek and refined retro sports look, Instrument de Vitesse is intended for enthusiasts of watchmaking history and culture. Housed in a 39-mm steel case, its 4.20 mm manually wound Manufacture calibre ensures that the finished timepiece is less than 10 mm thick. Instrument de Vitesse is available with an ivory-white or ebony-black dial in two limited series of 25 timepieces each.

Appearances can sometimes be deceptive. At first glance, Instrument de Vitesse does not appear to be a classic chronograph. With its three central hands, it looks like a watch... with three hands, but the tachymeter scale running around the outer edge of the dial reveals its chronometric function. For this is a chronograph presented in its purest expression, dedicated to timing short bursts – a measuring instrument designed to take average speed readings over a maximum of 60 seconds. This, in turn, casts new light on the crown, which also acts as the chronograph’s single push-piece to set the slender centre seconds hand in motion.

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DECEMBER 04 2024 | Novelties

Armin Strom unveils a new iteration of the Tribute – a homage to artisanal hand-finishing and exposed mechanics

Independent Swiss watch manufacture Armin Strom is expanding its Tribute collection with the new Tribute2, featuring a distinctive open worked design and remarkable three-dimensionality. The visible mechanical elements of the innovative movement and the elaborate hand decorations impart an intriguing visual depth to the watch. The Tribute2 – Copper Edition features a mainplate with a distinctive grattage design in an elegant copper hue. Limited to just 10 pieces, this edition underscores Armin Strom’s commitment to exceptional craftsmanship and exclusivity.

“The Tribute2 builds on the success of the Tribute 1 launched in 2021. It merges traditional watchmaking with contemporary design, highlighting the core values of the brand: transparent mechanics that artfully display the inner mechanisms, three-dimensional design that provides visual depth through various levels and the intricate details of the movement and meticulous hand decoration, which features prominently in this timepiece.” – 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.