@Forumamontres J'ai trouvé. 15 Hz, ça dépote ! https://t.co/fGeLM2NwEC
« Reinvention of Huyguens principle. New and Disruptive monolithic silicon oscillator replacing classic swiss anchor, hairspring and balance wheel » A new oscillator representing a major innovation in the watch industry since the 1675 invention of the balance and hairsrping principle by scientist Christiaan Huygens. The 21th century Defy Lab achieves exceptional performance making it a master of mechanical precision powered into a whole new dimension. First watch with a case (44 mm in diameter) made from Aeronith, the world’s lightest aluminium composite material.