or the first time, the off-centre dial of the Mirrored Force Resonance features a sunray guilloché pattern. The lines radiating from the dial’s centre are decorated using a traditional hand-operated rose engine lathe. The ice blue dial playfully catches and reflects light, creating an even more vibrant and deep view under the sapphire crystal. The new indexes and hands are beveled and polished, adding even more movement to the compelling design.

On the left side of the dial, the resonance mechanism takes centre stage: two balances oscillating in opposite directions, connected by Armin Strom’s patented clutch. Two second counters confirm the synchronisation of the balances. The anthracite-coloured bridges, surrounded by a 43 mm stainless steel case, remains discreetly in the background as if admiring the composition of the elements. A dark blue Alcantara strap gives the watch a refined look.

The manually wound Calibre 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 Armin Strom’s 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, visible on the display of twin seconds counters. A pusher at 2’clock resets the counters, allowing the wearer to have a visual proof of how accurate our resonance mechanism is.

At Armin Strom, hand-finishing of components is an essential step towards the creation of innovative timepieces. The brand’s attention to detail is visible through the sapphire crystal, front and back, with a display of hand-bevelled and polished bridges and black-polished screws. Perlage, Geneva stripes and circular graining are decorative techniques that reflect the brand’s conviction that each component of every timepiece must represent the essence of the brand. Each watch is assembled twice to ensure both mechanical precision and finishing integrity.

The Mirrored Force Resonance Ice Blue is a bold tribute to synchronised timekeeping and independent Swiss watchmaking.

TECHNICAL SPECIFICATIONS

Reference no. ST25-RF.05

Movement

• Armin Strom Manufacture Calibre ARF21
• Indications: Hours, minutes, twin-seconds
• Winding mechanism: Manual winding
• Functions: Resonance
• 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

• Stainless steel
• 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

• Ice blue, off-centre, guilloché pattern, circular satin-brushed chapter ring, applied polished baton indexes
• Hands: Stainless steel, facetted and polished, manufactured by Armin Strom

Strap

• Dark blue Alcantara strap with white stitching
• Stainless steel pin buckle

Limited Edition 15 pieces
Price: CHF 78,000