Why would a watch manufacturer want to speed that up? The more often the balance oscillates, the less impact external forces will have on timekeeping. When it swings back, it makes a full oscillation (two vibrations or semi-oscillations).
Picture a clock’s pendulum: as the pendulum swings one way it makes a vibration. Vph, (“vibrations per hour”), today often measured in Hertz (Hz), indicates how many times per hour the balance wheel rotates two vibrations (semi-oscillations) equal one full oscillation.
So what does the number 36,000 actually mean? See Measuring The Time Between The Seconds: The Truth Behind High-Frequency Movements for the long answer or read on for the short answer. View through the display back of a modern Zenith El Primero Zenith El Primero: a 36,000 vph high-frequency feat
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