MOVEMENT FREQUENCY

Getting watches up to speed

When perusing a mechanical watch movement’s features, you’d certainly have come across the denominations ‘Hz’ (hertz) or ‘vph’ (vibrations per hour). The number of ‘Hz’ or ‘vph’ refer to the frequency of a watch, and they basically tell you how fast the movement ticks. Similar to how a clock’s pendulum sways from left to right to control its ‘tick-tock-ing’ speed, a component in the movement called the balance wheel performs the same task; except, instead of swinging from end to end, it oscillates clockwise and then anti-clockwise. The speed at which it oscillates – and regulates the beating of the watch – is referred to as the frequency. The balance wheel oscillates (or ‘vibrates’) at a fixed number of times per hour. The swing of the balance wheel from its starting point…

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CROWN (Digital) - 1 Issue, June/July 2020

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