ARMIN STROM – One Week Manufacture Edition Blue

ARMIN STROM –  ONE WEEK Manufacture Edition Blue 2025 

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Armin Strom unveils the One Week Manufacture Edition Blue, casting its mechanical foundations in a striking new light. A deep blue PVD-coated mainplate transforms the openworked architecture into a visually immersive centerpiece. 

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Housed in a 41mm steel case with an integrated bracelet, this exclusive timepiece is limited to just 100 pieces.

Precision framed in blue

The One Week Manufacture Edition Blue reinterprets Armin Strom’s foundational calibre with a new captivating identity. 

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Housed in a 41 mm stainless steel case and paired with an integrated steel bracelet, the timepiece balances ergonomic performance with sculptural design. 

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The openworked architecture foregoes the traditional dial entirely, allowing the deep blue PVD coated mainplate to serve as a visual centerpiece. The watch explores contrast in form and finish, highlighting the depth and clarity of its mechanical design.

Crafted to perform, designed to endure

Powering the watch is the manual-winding Calibre ARM21, entirely developed, decorated and assembled in-house. 

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With two barrels mounted in series, it delivers a full seven-day power reserve and a beat rate of 3.5 Hz ensures enhanced chronometric stability. 

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A signature feature is the three-dimensional power reserve indicator, driven by a conical gear and polished cone, a kinetic reference to traditional pocket watches. 

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The movement reveals its choreography in real time: the ratchet wheels turning, barrels unwinding and gear train pulsing, all arranged in symmetrical harmony.

Finishing is the final statement

Like all Armin Strom creations, from the purest to the most complex, the One Week is a masterclass in haute horlogerie hand-decoration. 

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Straight and circular grained surfaces, chamfered and polished bevels, Geneva stripes, polished screws and sinks have been applied by expert hands. 

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Each movement is assembled twice - ensuring every piece meets the highest standards of both performance and aesthetics.

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With only 100 pieces available, this edition continues Armin Strom’s pursuit of mechanical innovation. 

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TECHNICAL CHARACTERISTICS

Collection: ONE WEEK

Model:  One Week Manufacture Edition Blue

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 Reference: ST25-OW.05

Case
    Material: Stainless steel
    Sapphire crystal and case back with anti-reflective treatment
    Diameter: 41.00 mm
    Thickness: 10.60 mm
    Lug-to-lug: 44.35 mm
    Water-resistant to 100 meters
Dial 
    Black minute ring, small-second dial, indexes with Super-LumiNova® filling
    Hands: Rhodium, facetted and polished with Super-LumiNova® filling
Movement
    Armin Strom Manufacture Calibre ARM21
    Manual winding movement
    Functions: Conical power reserve mechanism
    Regulating system: Balance wheel with 4 regulating screws
    Main plate: Blue PVD plate
    Diameter: 36.60 mm
    Height: 6.00 mm
    Frequency: 3.5 Hz (25,200 vibrations per hour)
    Number of jewels: 35
    Number of parts: 194
    Power reserve of 7 days
Functions/Indications
    Hours, minutes, small seconds
    Power reserve indicator
Strap 
    Stainless steel with a double-folding clasp

🔰Limited - ✅Only ❱❱❱ 100 pieces
🔴Price: CHF 39,000 / EUR 42,000 / GBP 39,000 / USD 41,000 💰

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Press releases - 2025
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ARMIN STROM AG |
Bözingenstrasse 46
CH-2502 Biel-Bienne | Switzerland
Tel. +41 (0)32 343 33 44
Fax +41 (0) 32 343 33 40
info@arminstrom.com
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For more information relating to this press release or to Armin Strom:
Bettina Fleury, Armin Strom AG,
Tel. +41 32 343 33 44, b.fleury@arminstrom.com
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ARMIN STROM – Gravity Equal Force Ultimate Sapphire Blue Edition

ARMIN STROM – SYSTEM 78 Gravity Equal Force Ultimate Sapphire Blue Edition 2025 

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With the Gravity Equal Force Ultimate Sapphire Blue, we bring the
best of Switzerland to your wrist: Timekeeping, Precision and
Breathtaking Landscapes

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A new interpretation of Armin Strom’s signature timepiece, the Gravity Equal Force Ultimate Sapphire Blue, joins the System 78 collection with a cooler, glacial-toned aesthetic. 

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This new edition highlights the transparency and depth of the collection’s distinctive architecture while introducing a refined palette of silvery greys and soft blue tones, evoking the tranquil clarity of Switzerland’s glacial lakes and alpine light.

A study of landscape and architecture

Housed in a 41 mm stainless steel case, the Gravity Equal Force Ultimate Sapphire Blue retains the defining features of the model, reimagined through a new chromatic lens. 

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At its centre lies a richly textured, glacial blue guilloché main plate crafted by independent watchmaker Kari Voutilainen. The open dial — positioned asymmetrically on the left side—is made of transparent sapphire, revealing the silvery components below. 

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The cooler colour palette continues throughout the movement, with the micro-rotor, equal-force barrel and finger bridges hand finished in rhodium to match the gear-train. 

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These tones contrast cleanly with the transparent sapphire dial, while the blue nubuck leather strap ties the whole look together with a modern, streamlined finish.

Controlling torque with delivery on time

The watch is powered by Armin Strom’s proprietary Caliber ASB19, the first automatic movement to feature a stop-work declutch mechanism combined with a Geneva cross within the barrel. 

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This patented system ensures that the force delivered to the balance remains constant throughout the 72-hour power reserve, greatly improving isochronism. 

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The movement’s compact micro-rotor allows it to be wound efficiently while preserving a thin and elegant profile. 

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Visible through the front and back sapphire crystals, the movement showcases a thoughtful integration of engineering and aesthetics—delivering consistent precision in a visually open design.

A Commitment to Hand-Finishing

Every component of the ASB19 is hand-finished in Armin Strom’s manufacture in Biel. 

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The bridges are bevelled and polished by hand; screws are black polished. Traditional decoration techniques—such as perlage, Geneva stripes and circular graining — are applied with care, underscoring the brand’s belief that hand-finishing is integral to its identity. 

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As with all Armin Strom creations, the Gravity Equal Force Ultimate Sapphire Blue is assembled twice. This dual-build process ensures both technical reliability and aesthetic refinement, reinforcing the brand’s uncompromising standards of craftsmanship.

Limited Annual Production

The Gravity Equal Force Ultimate Sapphire Blue is produced in a limited annual series of 25 pieces and is priced at CHF 27’500. 

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It is part of Armin Strom’s System 78 Collection, a line dedicated to showcasing independent watchmaking through technical innovation, architectural design, and a commitment to traditional hand-finishing. 

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The collection pays tribute to the birth year of co-founders Claude Greisler and Serge Michel, and to the values that continue to define the brand today.

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TECHNICAL CHARACTERISTICS

Collection: SYSTEM 78

Model:  Armin Strom Gravity Equal Force Ultimate Sapphire Blue

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Reference: ST24-GEF.BLU

Limited production of 25 pieces per annum

Case
    Material: Stainless steel
    Sapphire crystal and case back with anti-reflective treatment
    Diameter: 41 mm
    Height: 12.65 mm
    Lug-to-Lug: 48.09 mm
    Water-resistant to 3 ATM
Dial and hands
    Dial: Grey toned off-center sapphire crystal with subdial
    Hands: Rhodium, facetted and polished with Super-LumiNova® filling
Movement
    Armin Strom Manufacture Caliber ASB19
    Winding mechanism: Automatic-winding with micro rotor
    Functions: Patented equal force barrel, offset display with subdial seconds
    Regulating system: Balance wheel with 4 regulating screws
    Main plate: Glacial blue PVD plate with guilloché pattern by Kari Voutilainen
    Dimensions: 35.52 mm x 11.67 mm
    Frequency: 3.5 Hz (25,200 vibrations per hour)
    Number of jewels: 28
    Number of parts: 202
    Power reserve: Geneva stop-work limited to 72 hours
Functions/Indications
    Hours, minutes, seconds, power reserve indicator
Strap and buckle
    Blue nubuck leather strap with ice blue stitching and keepers
    Stainless steel folding clasp

 🔰EDITION     Limited edition to 25 pieces

🔴Price: CHF 27,400 / EUR 25.900 / GBP 27.300 / USD 26.900💰

(Price excluding tax / Free global delivery) 💰

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Press releases - 2025
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ARMIN STROM AG |
Bözingenstrasse 46
CH-2502 Biel-Bienne | Switzerland
Tel. +41 (0)32 343 33 44
Fax +41 (0) 32 343 33 40
info@arminstrom.com
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For more information relating to this press release or to Armin Strom:
Bettina Fleury, Armin Strom AG,
Tel. +41 32 343 33 44, b.fleury@arminstrom.com
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ARMIN STROM – Gravity Equal Force Ultimate Sapphire Rose Gold Edition

ARMIN STROM – SYSTEM 78 Gravity Equal Force Ultimate Sapphire Rose Gold Edition 2025

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Armin Strom Unveils the Gravity Equal Force Ultimate Sapphire Rose Gold — A Masterpiece of Mechanics and Elegance

A composition of tone, tension and time

The Gravity Equal Force Ultimate Sapphire Rose Gold introduces a sophisticated interplay of finishes, tones and architecture. 

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Its sculptural movement architecture is housed in a full 18K rose gold case, contrasting gently with a brown guilloché mainplate and rose gold-coloured bridges. 

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The off-centre sapphire dial appears to float above this composition, while the matte brown nubuck strap brings a subtle, earthy counterpoint. 

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This precise assembly of tones results in a watch that feels effortlessly coherent — where every element supports the next and nothing is left to chance.

Precision that lasts — by science

This timepiece is powered by Armin Strom’s Caliber ASB19, the first automatic movement to feature a stop-work declutch mechanism combined with a Geneva cross inside the barrel. 

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This patented solution controls torque delivery, ensuring equal force is supplied to the regulating organ from start to finish. The result is rare chronometric consistency — maintained over a full 72 hours of power reserve. 

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Opposite the barrel, a micro-rotor enables efficient winding without obstructing the view of the movement’s architecture — preserving the symmetry Armin Strom is known for.

Decorated with conviction. Built with patience.

As always at Armin Strom, all components, visible or invisible, are meticulously hand-finished. The three bridges are bevelled and straight-grained by hand. 

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The mainplate is decorated with a “grain d’orge” guilloché pattern, precisely cut using a traditional hand-operated guilloché machine. 

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Black-polished screws, along with decorative techniques such as perlage, Geneva stripes and circular brushing, are visible throughout the movement and reflect the attention to finishing. 

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Not as ornamentation, but as part of the movement’s visual identity.

Limited, by intent

Only 20 pieces per year will be produced — a rare and radiant statement in independent Swiss watchmaking.

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TECHNICAL CHARACTERISTICS

Collection: SYSTEM 78

Model:  Gravity Equal Force Ultimate Sapphire Rose Gold Edition

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 Ref.  RG24-GEF.SA 

Movement
Armin Strom manufacture Caliber ASB19
Automatic winding with microrotor
Geneva-drive equal force barrel, offset display with subdial subdial seconds

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Main plate: Brown PVD plate with guilloché pattern by Kari Voutilainen
Regulating system: Balance wheel with 4 regulating screws
Power reserve: Geneva stop-work limited to 72 hours
Dimensions: 35.52 mm x 11.67 mm
Frequency: 3.5 Hz (25,200 vph)
Finishing: Hand-finishing to the highest quality level
Jewels: 28
Number of components: 202
Indications
Hours, minutes, seconds, power reserve indicator
Case
Bezel: 18K Rose Gold
Sapphire crystal and case back with anti-reflective treatment
Diameter: 41mm
Height: 12,65mm
Water resistance: 3 ATMLug-to-
Lug: 48.09 mm
Dial
Grey-toned off-centre sapphire dial with subdial
Hands: Faceted polished hands and Super-LumiNova® filling
Strap
Delivered with a brown nubuck leather strap with beige stitching and keepers
Width lugs/buckle: 20/18 mm
Buckle: 18K Rose Gold Pin buckle 

 🔰EDITION     Limited edition to 20 pieces

🔴Price: CHF 39,400 / EUR 31.900 / GBP 27.300 / USD 28.900

(Price excluding tax / Free global delivery) 💰

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Press releases - 2025
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ARMIN STROM AG |
Bözingenstrasse 46
CH-2502 Biel-Bienne | Switzerland
Tel. +41 (0)32 343 33 44
Fax +41 (0) 32 343 33 40
info@arminstrom.com
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For more information relating to this press release or to Armin Strom:
Bettina Fleury, Armin Strom AG,
Tel. +41 32 343 33 44, b.fleury@arminstrom.com
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ARMIN STROM – Orbit Purple Edition

 

ARMIN STROM – SYSTEM 78 – Orbit Purple Edition 2025

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Armin Strom introduces the Orbit Purple: a striking midnight purple fumé dial housed in a black DLC case, paired with a black fabric strap.

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With the Orbit, we’ve created the world’s first on-demand pointer-date on a bezel. And in doing so, we didn’t just rethink a complication — we introduced a whole new experience. Most watches just force the date on you. 

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The date function is always present — whether you like it or not, it shifts at midnight, ticking off another day. The Orbit? It’s different. It only displays the date when you ask.

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While the date function shows restraint, the dial doesn’t hold back. The striking purple fumé finish shifts from a vivid purple center to darker edges, drawing the eye in. 

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The purple date pointer and the date on the ceramic bezel match the dial’s color, creating a seamless design. A black DLC-coated case and rugged black textile strap complete the look with high-contrast impact.

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Fully hand-finished, the Orbit Purple reflects our deep respect for traditional craftsmanship and hand decoration—paired with a passion for forward-thinking mechanics. Limited to just 20 pieces, it’s a rare blend of quiet innovation and distinctive style.

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Because even in Switzerland—where discretion is an art—we know that sometimes, presence speaks louder than discretion. 

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TECHNICAL CHARACTERISTICS

Collection: SYSTEM 78

Model: SYSTEM 78 Orbit Purple Edition

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 Reference: ST25-OR.01

Limited edition of 20 pieces

Case
    Material: DLC black-coated stainless steel, fixed ceramic bezel
    Diameter: 43.4 mm
    Height: 12.6 mm
    Lug-to-Lug: 44.35 mm
    Sapphire crystal and case back with anti-reflective treatment
    Water-resistant to 50 meters (5 ATM)
Dial
    Purple-to-black colour gradient, indexes with Super-LumiNova® filling
    Hands: Rhodium, facetted and polished with Super-LumiNova® filling
Movement
    Armin Strom Manufacture Caliber ASS20

   Click, to see the large size. ▶ BIG FOTO 

  Winding mechanism: Automatic winding with micro rotor
    Functions: Column-wheel date on demand, patented equal force barrel
    Regulating system: Balance wheel with 4 regulating screws
    Dimensions: 35.52 mm x 8.42 mm
    Frequency: 3.5 Hz (25,200 vibrations per hour)
    Number of jewels: 30
    Number of parts: 273
    Power reserve of 72 hours
Functions
    Hours, minutes, seconds, date
Strap
    Black textile strap
    DLC black coated stainless steel pin buckle

🔰EDITION     Limited edition to 25 pieces  
🔴Price: CHF 36,000 / EUR 36.300 / GBP 34.000 / USD 36.700

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Press releases - 2025
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ARMIN STROM AG |Sonja Voutat-Hagmann
Head of PR & Media
s.voutat-hagmann@arminstrom.com
Bözingenstrasse 46
CH-2502 Biel-Bienne | Switzerland
Tel. +41 (0)32 343 33 41
Fax +41 (0) 32 343 33 40

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