Armin Strom Gravity Equal Force Ultimate Sapphire Blue

Armin Strom presents a new interpretation of its Dual Time GMT Resonance, distinguished by a dial crafted from aventurine—a material that captures the richness and mystery of a star-filled sky. Formed through a meticulous process that blends centuries-old glassmaking with modern precision, aventurine reveals a surface alive with light. The result is a dial that evokes a night sky in motion, creating a refined contrast with the architectural symmetry of the resonance movement. This celestial texture is enhanced by the warm tones of the movement: the rose gold-coloured mainplate adds depth beneath the dial-side display, while rose gold-coloured hands and applied indexes introduce clarity and visual identity. Together, these elements create a balanced interplay between cool luminosity and warm mechanical presence. Housed in a 39 mm stainless steel case and paired with a dark grey alligator strap, the Aventurine edition offers a contemporary and restrained frame, allowing the dial's dimension and the movement's symmetry to take centre stage.

Resonance Across Time Zones
Powering the watch is the manual-winding manufacture calibre ARF22, entirely designed, developed and produced in-house. Its patented resonance clutch—a signature Armin Strom innovation—synchronises two independent regulating systems, allowing both balance wheels to oscillate in perfect harmony. This constant interaction elevates chronometric stability, transforming a rare physical phenomenon into a practical advantage. Each time zone features its own hours, minutes and day/night indicator, offering intuitive functionality for travellers. Operating at 3.5 Hz (25,200 vph) with a 42-hour power reserve, the ARF22 unites scientific ingenuity with everyday usability.

Finishing in Depth
Visible through sapphire crystals on both sides, the movement reveals Armin Strom's signature open-worked architecture and hand-finishing. The rose gold-coloured mainplate establishes a warm, luminous foundation on the dial side, while matching gear-train bridges on the reverse side echo this tone, creating a cohesive visual language. This harmony of colour and structure accentuates depth and contrast, reinforcing the three-dimensional expression of the calibre and the brand's commitment to the Science of Movement. On the dial side, the mirror-polished balance bridge, finished with hand-bevelled edges, stands out as a focal point, its steel surface catching the light in striking counterpoint to the warm rose gold-coloured mainplate beneath. Rhodium-coated and steel components introduce a refined metallic grey tone, balancing the overall composition. Additional hand-polished bevels, black-polished elements, circular graining and perlage enrich the composition, while the reverse side features Côtes de Genève, further emphasising the movement's refinement. As with all Armin Strom timepieces, each watch is assembled twice to ensure both mechanical precision and finishing excellence.

The new Dual Time GMT Resonance Aventurine is offered in a strictly limited edition of 15 pieces.
 

View Watch Gallery

 

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.

View Watch Gallery

 

In the world of independent watchmaking, few designs capture the essence of mechanical artistry and thematic storytelling like the Chronoswiss Strike Two collection. With its signature horizontal regulator layout and exposed gear architecture, the collection is a canvas for both cosmic inspiration and historical homage. The Stellar Blue and Nugget editions, though forged from different visions, share a unified spirit: precision in motion, elevated by craftsmanship.

Architecture of Time

At the heart of both models lies the Chronoswiss Manufacture Caliber C.6000, developed in collaboration with La Joux-Perret. This automatic movement delivers a robust 55-hour power reserve, beating at 4 Hz (28,800 A/h). A skeletonized tungsten rotor, ruthenium-plated Geneva-cut bridges, and polished components reflect the brand’s commitment to mechanical transparency and refinement. Viewed through a sapphire caseback, the movement reveals a radial geometry that echoes the symmetry of the dial above.

The horizontal regulator layout defines the Strike Two identity: a floating hour display at 3 o’clock, central luminous minutes, and a small seconds subdial at 9 o’clock. Two architectural bridges span the dial, exposing the gear train and anchoring the visual rhythm of the watch.

Stellar Blue – A Tribute to Cosmic Velocity

The Stellar Blue edition draws inspiration from the brilliance and motion of stellar light. Its dial features a deep blue CVD-coated base, hand-guillochéd with linear engraving that mimics the trajectory of light through space. A silver rhodium-plated subdial adds contrast, while the luminous minute hand glides across the dial like a comet in orbit.

Encased in matte grey sandblasted stainless steel, the watch offers a futuristic silhouette that complements its celestial theme. Measuring 40 mm in diameter and 12.7 mm in thickness, it wears with elegance and presence. The strap is crafted from white nubuck calfskin leather, lined with blue Alcantara, echoing the dial’s cosmic hue.

Nugget – A Homage to Discovery and Rarity

In contrast, the Strike Two Nugget is a celebration of terrestrial treasure — a mechanical gold rush forged in solid 18ct red gold. Inspired by the thrill of unearthing something precious, the Nugget edition elevates the Strike Two architecture with warmth, weight, and richness.

Its anthracite dial, hand-guillochéd and treated with a galvanic finish, reveals depth and texture. A glossy white lacquered small seconds subdial punctuates the monochrome palette, while the exposed gearwork beneath the hour display adds mechanical drama.

The case, polished and sandblasted, retains the 40 mm diameter and 12.7 mm thickness, but its golden sheen transforms the watch into a statement of rarity. Paired with a black nubuck calfskin strap lined in blue Alcantara, the Nugget balances boldness with refinement..

Two Visions, One Philosophy

Whether inspired by the stars or the soil, the Strike Two Stellar Blue and Strike Two Nugget embody Chronoswiss’s philosophy of independent design, mechanical excellence, and thematic storytelling. Limited to 100 pieces each, these timepieces are not just instruments of time — they are expressions of discovery, crafted for collectors who seek meaning in every detail.

View Watch Gallery of Stellar Blue

View Watch Gallery of Nugget