time-keeper


Armin Strom introduces new Mirrored Force Resonance in 18K rose gold

November 2025


Armin Strom introduces new Mirrored Force Resonance in 18K rose gold

Armin Strom’s iconic Resonance timepiece enters a new era with a rose gold case and black guilloché dial.

A

rmin Strom enriches its Mirrored Force Resonance collection with a refined new edition in 18K rose gold. For the first time, the signature case is crafted from this warm metal, featuring alternating brushed and polished finishing across its 43 mm diameter.

Below the sapphire crystal, the large black off-centre dial provides a bold contrast. It features a handcrafted sunray guilloché pattern created on a traditional rose engine lathe, framed by a chapter ring with circular finishing that adds depth and texture. Paired with a dark grey Alcantara strap, this new interpretation blends mechanical innovation with timeless elegance—marking a golden era for Armin Strom’s most iconic timepiece.

Armin Strom introduces new Mirrored Force Resonance in 18K rose gold

The manually wound Caliber ARF21 that powers this timepiece has been hailed as a watchmaking breakthrough in the mastery of resonance. It facilitates the synchronisation of two balance wheels via the patented Resonance Clutch that connects two sets of oscillators, each with its own balance wheel and hair spring. The mechanism ensures enhanced precision and chronometric stability. A pusher at 2’clock resets the two seconds counters, allowing the wearer to have a visual proof of just how accurate our resonance mechanism is.

At Armin Strom, hand-finishing is an essential step towards the creation of our timepieces. Visible through the sapphire crystal on both sides, the movement reveals a refined interplay of hand-bevelled bridges, polished and mat finished surfaces with black-polished screws. Perlage and circular graining further enrich the architecture, each finish thoughtfully applied to underscore Armin Strom’s unwavering commitment to craftsmanship. Each watch is assembled twice to ensure both mechanical precision and finishing integrity.

Armin Strom introduces new Mirrored Force Resonance in 18K rose gold

“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. The warm tones of rose gold complement the refined mechanics and craftsmanship of the watch, creating a harmonious blend of tradition and modernity.” said Claude Greisler, Co-Founder and Master Watchmaker at Armin Strom.

Armin Strom introduces new Mirrored Force Resonance in 18K rose gold

TECHNICAL SPECIFICATIONS

Mirrored Force Resonance Rose Gold, Reference no. RG25-RF.90

MOVEMENT:

  • Armin Strom Manufacture Caliber ARF21
  • Indications: Hours, minutes, twin-seconds
  • Winding mechanism: Manual winding
  • Functions: Resonance, Flyback
  • Regulating system: Two independent regulating systems connected by a resonance clutch
  • Power reserve: 48 hours
  • Frequency: 3.5 Hz (25,200 vibrations per hour
  • Dimensions: 37.20 mm x 6.70 mm
  • Jewels: 39
  • Number of components: 276

CASE:

  • 18K Rose gold
  • Sapphire crystal and case back with anti-reflective treatment
  • Water resistance: 3 ATM
  • Diameter: 43 mm
  • Height: 11.55 mm
  • Lug-to-Lug: 49.60 mm

DIAL:

  • Black, off-center, guilloché, azuré,
  • Applied polished baton indexes

HANDS:

  • Rose gold coloured, facetted and polished

STRAP:

  • Dark grey Alcantara strap with grey stitching
  • 18K Rose gold pin buckle

LIMITED EDITION:

  • 15 pieces

PRICE:

  • CHF 88’000.-

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