Alarm watch

Probably the first alarm watch was invented by the Greek philosopher Plato in the 4th century BC by repurposing a water clock From a container water dribbled permanently into a second container that capsized at a time-dependent filling height and emptied itself into a third container. The air therein was compressed abruptly and escaped through a pipe valve, whose shrill sound clearly could revive the dead.

The invention of the first mechanical alarm clock of the industrial age is attributed to Levi Hutchins from Concord, New Hampshire (USA). However, his first alarm clock made in 1787 could only ring by 4 clock in the morning - this was the time for Hutchins to get up.

The French inventor Antoine Redier patented in 1847 as a first a mechanical alarm clock with adjustable alarm time.

Wristwatches with alarm function are e.g. since 1947 the alarm wristwatch Vulcain Cricket, since 1951 the model “Minivox” of Junghans. Jaeger-LeCoultre created 1950 the Memovox line and 1956 the first automatic wristalarm …

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