Armin Strom Resonance Mirrored Force Resonance Ice Blue Guilloché Dial ST25-RF.05

A milestone for independent watchmaking

The Mirrored Force Resonance is the first watch in the collection to leverage master watchmaker Claude Greisler’s milestone achievement, which harnessed the “Resonance Phenomenon” in a completely new way. It is characterized by a novel resonating dual regulator designed for maximum chronometric precision; one that also provides a mesmerizing visual pulsation effect on the dial-side of the watch. 

Making its debut in 2025, the off-center dial of the Mirrored Force Resonance Ice Blue features a new sunray guilloché pattern. The lines radiating from the dial’s center 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 synchronization 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.

Limited Edition: 15 pieces

Specifications

Distinctions

• Two independent, symmetrically mirrored regutors, available with Ice Blue guilloché dial

Movement

• Winding-mechanism: Manual
• Regulating system: Two independent regulation systems that stabilize each other connected by a resonance clutch spring.
• Frequency: 25,200 vph
• Number of jewels: 43
• Power reserve: 48 hours

Case

• Stainless steel
• Sapphire crystal and case back with anti-reflective treatment
• Diameter: 43.40 mm
• Height: 13.00 mm
• Lug-to-Lug: 50.95 mm
• Water-resistance: 50 m

Dial

• Ice Blue hand guilloché with founded appliques

Hands

• Stainless steel

Strap

• Delivered with a Dark Blue Alcantara horn-back strap
• Width lugs/buckle: 22/20 mm

Buckle

• Pin buckle in stainless steel, a folding clasp in stainless steel is available on option