Mirrored Force Resonance Manufacture Edition White

CHF 54'000

The Mirrored Force Resonance is the first watch in the collection to leverage Claude Greisler’s milestone achievement, which harnessed the “Resonance Phenomenon” in a completely new way.


Place your reservationAsk for more information
Category: SKU: N/A


Two independent, symmetrically mirrored regutors

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 ring
White with founded appliques

Steel, manufactured by Armin Strom, decorated by hand

Delivered with a genuine alligator horn-back strap as well as an additional rubber strap
Width lugs/buckle: 22/20 mm

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


The Mirrored Force Resonance is the first watch in the collection to leverage Claude Greisler’s milestone achievement, which harnessed the “Resonance Phenomenon” in a completely new way.

The Mirrored Force Resonance’s differentiated ability to consistently maintain a state of resonance represents nothing less than a redefinition of the practical limits for horological precision in a wristwatch.

First released in November of 2016, this watch 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.

A horological milestone

Resonance watches are so rare precisely because they are so extraordinarily difficult to design and produce, as they essentially require two watch movements to be combined into one unit that utilizes two independent mainsprings, gear trains, escapements, and balances. A resonance watch requires its two balance wheels find a concurrent rhythm so as to continuously regulate one another. The follow-on challenge is to consistently maintain oscillation-rate stability; in order to enlist the resonance phenomenon to the cause of chronometric precision. This challenge has historically eluded even the greatest of watchmakers, as the fragility of the phenomenon makes it extraordinarily difficult to consistently maintain with resiliency to disruption; particularly in the context of a human wrist that is both continously engaged in unpredictable motion and which often ‘bumps into things’.


The pursuit of a consistent state of resonance is what ultimately led Claude Greisler to conclude that Abraham-Louis Breguet’s approach, which achieves resonance via precise balance-wheel proximity, was of little actual utility in the context of his precision-oriented horological ambitions. Greisler’s goal was to harness the resonance phenomenon in a wristwatch with sufficient consistency to enable his wristwatch to operate with marine-chronometer precision, despite the ever-changing positions of the human wrist. Marine Chronometer accuracy targets consistency as its sole goal; meaning that it must gain or lose precisely the same number of seconds every single day without variation. Contrast this with the variable plus/minus approach for a standard wristwatch and the difference becomes exceedingly clear. It would require two balance wheels to dynamically regulate each other on a consistent basis in order for Greisler’s ambition to be achieved.

In the end, Greisler’s solution would require a return to first principles and a deep exploration of the resonance theories of Christiaan Huygens (the father of mathematical physics and the inventor of the pendulum clock; who had died over 50 years before Breguet was even born).

In keeping with his desire to restrict his solution to the same materials that his watchmaker-grandfather could have used, Greisler’s developed his “Huygens Resonance Clutch Spring” in steel. He spent three years perfecting its shape and characteristics: recalculating, optimizing, simulating, testing, retesting and achieving incremental improvements until the ‘Huygens Clutch Spring’ had developed into its current form. This patented clutch spring design maintains an optimal a state of resonance by synchronizing two sets of oscillators (comprising twin balance wheels and balance springs) in what Huygens described as a state of ‘odd sympathy’ (oscillating in perfect consonance but in opposite directions, while synchronized in anti-phase).

ARF15 with the resonance clutch spring

‘Kinetic Art’ for the wrist

A kinetic spectacle

It was Armin Strom’s commitment to dial-side ‘transparent mechanics’ that inspired the aesthetic design of the Mirrored Force Resonance. Its absolutely spectacular movement finishing is often overlooked as the hypnotic pulsation of its clutch spring and the synchronized motion of its two balance wheels (as well as the optional guilloché dial options) provide a mesmerizing distraction that invariably captures most of the attention.

“My primary objective was to improve chronometric precision via the consistent maintenance of a resonance state. But that consistency was also a prerequisite to sustain a kinetic spectacle on the dial side of our watch. With a great deal of time and effort, our technical and aesthetic ambitions were both ultimately achieved.”


Claude Greisler, Co-Founder and Master Watchmaker

Calibre ARF15

Manual, 48 hours Power reserve,
off-centre time indications
Frequency: 25,200 vph
Number of jewels: 43
Number of individual parts: 226

To the Calibre

All Variations