Clock

Clock

Any instrument other than a watch for measuring or indicating time, especially a mechanical or electronic device having a numbered dial and moving hands or a digital display.

Industry: Chronometry

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Clock

The granular finish given to the centre of a brass clock dial, or a type of finish for clock parts. The effect is produced by punching the matted centre dial all over with a single or multipointed ...

Master clock

Chronometry; Clock

All time distribution systems must have an accurate controlling clock. Carl August Steinheil, who first applied electricity to time distribution, used the term 'central' clock; Alexander Bain later ...

Massachusetts shelf clock

Chronometry; Clock

A style of clock frequently called half-clock or box-on-box. The upper portion with dial rested on feet on a separate lower section which contained the pendulum. A similar design developed into the ...

Lighthouse clock

Chronometry; Clock

A unique clock made by Simon Willard in 1822, featuring an octagonal base, a mahogany case, a tapered circular trunk, and a glass dome covering an eight-day alarm movement.

Light emitting mode (LED)

Chronometry; Clock

Number telling the hours and minutes light up on a readout screen.

Light clock

Chronometry; Clock

In 1960 Patek Philippe, a Geneva-based firm, marketed a clock to rival the Atmos clock for perpetuance of motion. Housed in a variety of case styles, the clock has a transparent panel on the top of ...