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Chromatic Precision: Armin Strom Orbit in Lime & Ice

JULY 18 2025    |    Novelties

Armin Strom, the independent Swiss watchmaker renowned for its openworked designs and mechanical innovation, proudly unveils two striking new additions to its System 78 collection: the Orbit Lime Green and Orbit Ice Blue.

These limited edition timepieces—each restricted to just 20 pieces worldwide—introduce vibrant new fumé dials that blend bold aesthetics with technical mastery. The Lime Green model radiates energy and modernity, while the Ice Blue version offers a serene and sophisticated presence. Both dials feature a gradient effect that transitions from vivid color at the center to deep black at the edges, enhancing the visual depth of the openworked design.

A World-First Date Display on Demand

At the heart of both models lies the Armin Strom Manufacture Caliber ASS20, the world’s first movement to feature a date display on a ceramic bezel that appears only when activated. A pusher at 10 o’clock engages the date hand, which points to the current date and advances automatically at midnight. A second press returns the hand to its neutral position, offering a playful yet practical complication powered by a column-wheel mechanism.

The movement also incorporates Armin Strom’s patented Equal Force Barrel, delivering consistent energy for a stable 72-hour power reserve.

Haute Horology Craftsmanship

Each Orbit model is meticulously hand-finished at Armin Strom’s Manufacture in Biel/Bienne, employing traditional techniques such as anglage, perlage, and circular graining. The off-center dial is paired with rhodium-coated hands enhanced with Super-LumiNova®, ensuring legibility and elegance. The watches are housed in a stainless steel case with a fixed ceramic bezel and come with a matching bracelet featuring a double-folding clasp.

The Science of Movement

Founded in 1967 and revitalized in 2009, Armin Strom continues to push the boundaries of horological innovation. Every timepiece is designed, developed, and assembled in-house, reflecting the brand’s commitment to transparency, craftsmanship, and mechanical excellence.

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Armin Strom Gravity Equal Force Ultimate Sapphire Rose Gold

Armin Strom Orbit Lime Green & Ice Blue

Technical Specifications

Functions Hours, minutes, seconds, power reserve indicator, Column-wheel date on demand, patented equal force barrel
Movement Calibre: ASS20, automatic with micro rotor
Jewels: 30
Components: 273
Power reserve: 72 hours (Geneva stop-work)
Frequency: 3.5 Hz / 25,200 vph
Dial Off-center, indexes with Super-LumiNova® filling
Lime green fumé/Ice blue fumé
Hands Rhodium, facetted and polished with Super-LumiNova® filling
Case Material: stainless steel, fixed ceramic bezel
Diameter: 43.4 mm
Height: 12.6 mm
Lug-to-Lug: 44.35 mm
Crystal: Sapphire crystal and case back with anti-reflective treatment
Water-resistance: 5 ATM
Bracelet Stainless steel with double-folding clasp
Reference Lime Green: ST25-OR.05
Ice Blue: ST25-OR.21
Limited Edition 20 pieces each

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NOVEMBER 19 2025    |    Novelties

A Deeper Cut: Armin Strom One Week Skeleton Rose Gold

   

Armin Strom extends its golden era with the One Week Skeleton Rose Gold, a new interpretation of its architectural One Week design. This fully skeletonised masterpiece reveals the depths of its mechanics, paying tribute to Mr. Armin Strom’s pioneering artistry in skeletonisation—a craft at the heart of the brand’s philosophy and heritage.

For the first time, the in-house calibre appears in a solid 18K rose gold case, enriching the collection with a warmer character. Rose gold-coloured finger bridges, hands, and applied indexes mirror the tone of the case, while a sleek black textile strap provides a refined modern contrast. Measuring 41 mm in diameter, the case remains compact and ergonomic, while its skeletonised architecture gives the watch a distinctive presence—a harmonious balance of technical craftsmanship and precious metal elegance.

Seven Days of Precision
At its heart lies the hand-wound Calibre ARM21-S, a reinterpretation of Armin Strom’s first in-house calibre. Two mainspring barrels work in series to deliver a steady flow of energy for seven days, wound by two ratchet wheels visible on the dial side—a distinctive Armin Strom signature. Operating at 3.5 Hz, the calibre ensures consistent precision and stability in daily wear.

Inspired by historical pocket watches, the conical power reserve mechanism is complemented by a 3D power reserve indicator, displaying remaining energy with exceptional clarity. Central hours and minutes keep the display symmetrical, while a skeletonised small seconds at 9 o’clock adds an engaging sense of motion.

Transparency in Gold
Every component of the Calibre ARM21-S is decorated by hand, reflecting Armin Strom’s dedication to traditional craftsmanship. Hand-polished bevels, Geneva stripes, circular graining, and finely finished screw sinks demonstrate uncompromising attention to detail. Each One Week is assembled twice—a hallmark of the brand’s commitment to mechanical precision and aesthetic integrity.

Limited to just 50 pieces worldwide, the One Week Skeleton Rose Gold continues Armin Strom’s modern gold chapter—a celebration of mechanical transparency, precision, and craft.

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APRIL 01 2026    |    Watches and Wonders 2026

The Architecture of Two Worlds: Chronoswiss Unveils the PULSE GMT Collection

Chronoswiss marks a definitive leap into the future of independent watchmaking with the introduction of the PULSE GMT, a collection that represents one of the most progressive chapters in the brand's history. Inspired by the mechanical spirit of the 1999 Tora icon, this new series redefines traditional design codes through a radically modern lens while maintaining the brand's independent spirit. The collection is built specifically for global travelers and collectors who move between continents and time zones, requiring a sophisticated mechanical companion.

The PULSE GMT features a bold, sculptural case construction that seamlessly integrates the first full metal bracelet in Chronoswiss history. This architectural approach ensures a unified presence on the wrist, blending the iconic onion crown and coin-edge bezel with contemporary lines. Whether crafted from high-strength Grade 5 Titanium for daily wear or solid 18-carat 5N Gold, the 41mm case offers a powerful physical and visual statement.

At the heart of the collection beats the Manufacture Caliber C.6002, an automatic movement developed exclusively with La Joux-Perret. This dedicated mechanical construction provides a true dual-time display, featuring a 24-hour second time zone on the left and a 12-hour home time on the right, all unified by central minutes and seconds. With a 55-hour power reserve and water resistance up to 10 bar, the movement is designed for movement and mechanical clarity.

The collection showcases the height of Lucerne craftsmanship through two distinct dial interpretations. The Silver Guilloche edition celebrates pure mechanical texture with hand-guilloché patterns cut on century-old machines, while the Enamel Sky Gold features the rare art of paillonné enamel. This demanding craft embeds gold stars within layers of translucent fire enamel over a guilloché base, creating a celestial display designed to last for centuries.

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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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