Description

Armin Strom and their Mirrored Force Resonance, a groundbreaking development propelling resonance to an unprecedented level.

Their resonant caliber ARF15 features two oscillators connected by a steel resonance clutch spring, connected to the balance spring studs.

The two balance wheels get coupled by the tiny vibrations in the spring. This revolutionary, patented mechanism get the two oscillators to synchronize while making their revolutions in opposite direction.

The AFR15 resonance clutch spring is the strategic component of the AFR15. While most previous developments to take advantage of resonance have been focusing on the adjustment of the distance between the two regulators, the clutch spring bridges directly the two balance wheel studs, enhancing the propagation of vibrations and the synchronization of coupled oscillators. The spring was perfected over two and a half years until the optimal shape was determined with the objective to maximize the vibration propagation in between the two studs along a horizontal plane (9 o’clock – 3 o’clock axis). Crafted in steel, a traditional horological material, this Monobloc spring is manufactured by wire spark erosion with tolerances of 5 microns.

The ARF15 caliber is fully developed, manufactured and assembled in-house and provides an innovative solution to improve chronometry, a real horological raison d’être. If Armin Strom have been manufacturing in-house calibers since 2009