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SIHH 2019: Armin Strom Dual Time Resonance Sapphire

Dual Time Resonance Sapphire: Maximum Horology, Total Transparency
by Chester Lau on January 12, 2019

The Dual Time Resonance Sapphire by Armin Strom is a horological masterpiece: a chef d’œuvre combining the practicality of two completely independent time indications with the increased precision of two independent movements in resonance. And all that in 360° display within a dazzling transparent sapphire crystal case. While Armin Strom is known for not covering their movements with a dial to highlight the horology within, this sapphire crystal case takes transparency to a whole new dimension.

Wearing the Dual Time Resonance Sapphire is like wearing a movement on the wrist, with all of Armin Strom’s meticulous hand finishing and inventive horology on full display.

“This new Sapphire case sets the perfect stage for the detailed work and passion we put into the Dual Time Resonance. The total transparency does not allow for any mistakes and demands a finish on the highest level, which goes in line with our philosophy,” says Claude Greisler, co-founder of the manufacture.

Armin Strom began research and development into using the phenomenon of resonance in a wristwatch with two main goals: the first that any resonant complication should demonstrably improve timekeeping precision, and the second that people should be able to visually appreciate the phenomenon of resonance as it happens.

The Dual Time Resonance features two independent movements side by side, which even further emphasizes the fact that there are two completely separate movements synchronizing oscillations due to the phenomena of resonance.  

The Dual Time Resonance Sapphire demystifies and highlights resonance to the extreme, the crystal-clear sapphire crystal case offering views of the movement from all angles.

The patented Resonance Clutch Spring – the result of three years of intensive research and development – connects two individual movements arranged side by side, each independently displaying two time zones and each synchronized with the other through resonance for improved chronometric precision.

Independent movements enable the Dual Time Resonance Sapphire to indicate GMT, a second time zone, or function as a timer or countdown. Completing the indications are independent power reserve indicators and a 24-hour indication serving both displays.

The CSEM (Centre Suisse d’Electronique et de Microtechnique) has officially certified Armin Strom’s Resonance Clutch Spring system as being a true system in resonance. Armin Strom’s laboratory testing has revealed gains in precision of 15-20% for two COSC-certified chronometer-level regulated movements placed in resonance.

The Armin Strom Masterpiece 1 Dual Time Resonance Sapphire launches in a scratch-resistant limited edition of 8 pieces.

Dual Time Resonance Sapphire: crystal-clear evolution

With the introduction of the Mirrored Force Resonance, Armin Strom revolutionized both the practical and aesthetical benefits of using the physical properties of resonance in wristwatches. The Mirrored Force Resonance demystified resonance by placing two oscillators resonating through the patented Resonant Clutch Spring front and center. Here, the dials and dual regulators sit on top of two vertically-stacked, independent movements.

To highlight the highest level of horology and micro-engineering, Dual Time Resonance highlights the duality of the two independent resonating movements by replacing the vertical ‘stacked’ movement architecture with horizontal side-by-side movements. This has the added attraction of enabling appreciation of even more of the impeccably finished movement.

The independent second time display can also function as a countdown indicator or for tracking elapsed time. Two independent movements mean two independent time displays, one 24-hour indicator, four mainspring barrels, and two conical power reserve indicators.

In the pursuit of horological accuracy, precision, and rate stability, resonance has usually involved using two connected independent movements to allow fine tuning of the distance between them. Until Armin Strom, precise adjustment of the distance between the two regulators has been necessary to incite resonance. However, the Armin Strom Resonance Clutch Spring eliminates the necessity for fine tuning the distance, ensuring a much more reliable and efficient resonant system only needing up to 10 minutes to synchronise. The idea of resonance has endured for three centuries for a reason, but that doesn’t mean you can’t improve upon it.

Armin Strom’s patented Resonance Clutch Spring is an innovative way of upgrading an old concept, one that is horology’s very reason for being: precision and accuracy.

The CSEM (Centre Suisse d’Electronique et de Microtechnique) has officially certified Armin Strom’s resonance system based on the Resonance Clutch Spring as being a true system in resonance.

Technical specifications: Dual Time Resonance Sapphire
Reference:  RGMT.11.AL.L.14.FC

Indications:
Movement 1: hours, minutes, 24-hour indicator, power reserve indicator;
Movement 2: hours, minutes, power reserve indicator

Movement: Armin Strom manufacture calibre ARF17
Manual-winding, patented resonance clutch spring, dual off-centre time indications, 4 mainspring barrels
Regulating system: two independent regulation systems connected by a resonance clutch spring
Power reserves: conical x 2, 110 hours for each movement
Dimensions: 52.55 mm x 39.95 mm x 11.67 mm
Frequency: 3.5 Hz (25,200 vph)
Finishing: base plate and bridges are decorated to the highest quality level
Jewels: 70
Number of components: 419

Case: Sapphire crystal
Sapphire crystal front and case back with antireflective treatment
Diameter: 59 mm x 43.4 mm (including lugs)
Height: 13 mm
Water resistance: 50m

Dials: blue, hand guilloche

Hands: polished stainless steel

Straps: delivered with a blue alligator strap and stainless steel double-folding clasp.

Price: CHF 280,000.-

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