Claude Greisler, Armin Strom Co-Founder and Master Watchmaker (Biel, Switzerland)
Resonance is one of the most fascinating physical phenomena explored in watchmaking, where two oscillators influence each other and eventually synchronize. Since Christiaan Huygens’ 17th‑century observations with pendulum clocks, watchmakers have sought to harness it in wristwatches.
At the May 2026 lecture of the Horological Society of New York (HSNY), Armin Strom Co-Founder and Master Watchmaker Claude Greisler will share how the brand successfully achieved resonance in 2016 with the calibre ARF15. Central to this innovation is the patented resonance clutch, which links the two hairsprings, allowing them to synchronize quickly and continuously average out rate deviations. Join Greisler as he explores the journey from theory to mechanism and the creation of a modern resonance system.
*Doors open at 5:30 PM ET, lecture to begin at 6 PM ET. RSVP is required.
** The lecture video will be available to members immediately, and to the general public following a two-month delay.
About Claude Greisler
“A passion for ‘transparent mechanics’, both from an aesthetic perspective and to showcase how our watches actually work, has always guided my design sensibility. From a watchmaking perspective, I honor the many generations of Swiss-German watchmakers in my family with an uncompromising commitment to perfection in both movement quality and finishing.” — Claude Greisler
Born into a watchmaker family, Claude Greisler began his formal watchmaking education at a watchmaker school in Solothurn, Switzerland, followed by advanced programs at the Centre Interrégional de Formation des Montagnes (CIFOM) in Le Locle. He graduated in watch restoration and watch development, completing a comprehensive eight-year education that combined classical techniques with the design and construction of complicated timepieces.
After refining his craft at Christophe Claret, a brand famed for its ultra-complicated watches, Claude co-founded ARMIN STROM to bring his own vision of watchmaking to life. A master watchmaker, he is celebrated for his dedication to “transparent mechanics,” revealing not just the beauty but also the ingenuity behind every movement. At ARMIN STROM, Claude has pioneered groundbreaking horological innovations, most notably the Mirrored Force Resonance system, where meticulous finishing meets inventive mechanical design to push the limits of precision, performance, and aesthetic clarity.