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    FHH | Understanding Vibration in Mechanical Watches

    Vibration

    振动 Vibration Alternance

    Glossary

    Thematic Regulation, Technic

    Movement of a pendulum or oscillating body between two extreme positions (A' and A').

    The balance of a mechanical watch generally makes five vibrations per second, equivalent to 18,000 vibrations/hour (2.5 Hz). A more accurate mechanical watch makes 10 vibrations per second or 36,000 vibrations/hour (5Hz). A quartz watch makes 64,000 vibrations per second ( 32 MHz).

    An oscillation (« tick-tock ») equals two vibrations (although oscillation is sometimes incorrectly used to refer to a vibration).