It was Antide Janvier's mechanism that François-Paul Journe adapted for the "Chronomètre à Résonance" wristwatches that he began making 10 years ago, relying on the natural phenomenon of resonance for accuracy.
It was Antide Janvier’s mechanism that François-Paul Journe adapted for the “Chronomètre à Résonance” wristwatches that he began making 10 years ago, relying on the natural phenomenon of resonance for accuracy.