H101 Resonance Classic
The Double Regulator
This double regulator is equipped with two identical and independent precision movements, each with a seconds pendulum. Shortly after setting both pendulums in motion, it may be noticed that they will settle into a mode where they swing in opposition. In other words, with a phase shift of 180°. This mode of operation is very stable. Although there is no connection between the two clocks they remain mysteriously synchronized.
Fine regulation is performed by adding or removing weights on the pendulum trays. The phase shift of 180° persists at all times.
The phenomenon of the synchronized movement of two pendulums has fascinated horologists since Christian Huygens (1629–1695).