The Breguet Pulsograph display case: The 21st Century pendulum.
The PulsoGraph makes it possible to amplify the natural sound of a watch by collecting the vibrations through the crown. The sound is diffused by a resonant wooden sound- board 350 years old, from the Risoud forest in Brassus. No microphone is used hence the sound is of great quality and purity and unequalled naturalness.
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