Dual Time Resonance | ARMIN STROM

Dual Time Resonance

ARF17
Calibre
ARF17
Manual, 110-hours power reserve,
off-centre time indications
Frequency: 25’200 vph
Number of jewels: 70
Number of individual parts: 419
ARF17
Dual Time Resonance:
Masterpiece 1

The Dual Time Resonance shines a spotlight on Resonance: two independent movements sit side-by-side in a distinctive oval case, their regulators wedded by Armin Strom’s patented Resonance Clutch Spring performing a continually horological two-step between the dual eye-catching counter-oscillating balances.

The Resonance Clutch Spring is the key to Armin Strom’s mastery of resonance, and the was result of three-years of intensive research and development. Two independent movements display two independent time zones — not simply one movement with two displays.

Armin Strom Co-Founder and technical director Claude Greisler explains, “Developing a perpetual calendar or tourbillon would have been far easier than the years we spent calculating and validating the Resonance Clutch Springs, it was uncharted territory.”

Independent movements enable the Dual Time Resonance to indicate GMT, or a second time zone, as well as a function used as a timer or countdown. Power reserve indicators on each of the hand-guilloche dials and a 24-hour indication at 6 o’clock complete the indications.

“Form follows function” could have been written for the Dual Time Resonance: two movements side by side (rather than stacked vertically) naturally led to the oval-shaped case, while the increased space afforded by the movements in this configuration allowed for two barrels per movement and a longer power reserve. Gazing through the display back at all four barrels winding simultaneously is as mesmerising as the ballet of the dual regulators on the dial.

Resonance Cutch Spring Dual Time Resonance
Patented Resonance Clutch Spring
Backside Dual Time Resonance
Two barrels per movement allow a longer power reserve
Hand Guilloché dials Dual Time Resonance
Power reserve indicators on each of the hand-guilloche dials and the 24-hour indication

Technical specifications

Distinctions
Two independent, symmetrically mirrored regulators

Case
Titanium, Whitegold and 18ct rose gold
Sapphire crystal and case back with anti-reflective treatment
Diameter: 59 mm x 43.4 mm
Height: 15.90 mm
Water-resistance: 50 m

Dial
Black or blue guilloché with founded appliques

Hands
Stainless steel

Strap
Delivered with a genuine alligator - strap

Buckle
Double-fold clasp in stainless steel or 18ct rose gold

Edition
Limited to 8 pieces

Price from
180'000 CHF

Calibre ARF17
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