Mirrored Force Resonance Red

The Armin Strom Mirrored Force Resonance Red (Ref. ST25‑RF.10) is a 15‑piece limited edition showcasing the brand’s patented dual‑balance resonance technology inside a 43 mm stainless‑steel case. Applied facetted baton indexes hover above the guilloché surface, while the left side of the dial exposes the watch’s signature architecture: two independent balance wheels oscillating in opposite directions and synchronising through Armin Strom’s Resonance Clutch. Their mirrored motion is displayed via twin running‑seconds indicators, which can be reset simultaneously using the pusher at 2 o’clock.

Powering the watch is the in‑house Calibre ARF21, a manual‑wind movement integrating two complete gear trains, barrels, escapements and regulating organs within a single calibre. Operating at 3.5 Hz with a 48‑hour power reserve, it delivers enhanced rate stability through harmonic resonance. The movement is visible through sapphire crystals on both sides and features extensive hand‑finishing, including polished bevels, frosted surfaces, perlage, circular graining and black‑polished screws. As with all Armin Strom watches, each piece is assembled twice to ensure optimal precision.

The stainless‑steel case measures 43 mm in diameter, 11.55 mm in height and 49.60 mm lug‑to‑lug, with front and back sapphire crystals treated with anti‑reflective coating. It is paired with a dark grey Alcantara strap with white stitching and a steel pin buckle. Water resistance is rated at 3 ATM. With only 15 examples produced and a retail price of CHF 78,000, the Mirrored Force Resonance Red represents one of the most exclusive executions of Armin Strom’s signature resonance technology—ideal for collectors of independent watchmaking and mechanically expressive haute horlogerie.