Watch

A watch is a small portable timepiece or clock Clock

A clock is an instrument for measuring time [i] and for measuring time intervals of less than a day&mda ... 

 that displays the time Time

Two distinct views exist on the meaning of time.... 

 and sometimes the day Day

A day is a unit [i] of time [i] equal to 24 hour [i]s. ... 

, date, month and year. In past centuries, these often took the form of pocket watch Pocket watch

A pocket watch is a strapless personal timepiece [i] that is carried in a pocket. ... 

es, which today are seldom carried or worn. In modern usage, watch is usually a contraction of wristwatch, a designation for the most popular style of timekeeping device worn on the wrist.

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Timeline

1957   Hamilton Watch Company introduces the first electric watch.

1973   The COSC The Swiss Official Chronometer testing Institute was founded in Switzerland by five Watch Cantons & FH, Federation of the Swiss Watch Industry.



Encyclopedia

A watch is a small portable timepiece or clock Clock

A clock is an instrument for measuring time [i] and for measuring time intervals of less than a day&mda... 

 that displays the time Time

Two distinct views exist on the meaning of time.... 

 and sometimes the day Day

A day is a unit [i] of time [i] equal to 24 hour [i]s. ... 

, date, month and year. In past centuries, these often took the form of pocket watch Pocket watch

A pocket watch is a strapless personal timepiece [i] that is carried in a pocket. ... 

es, which today are seldom carried or worn. In modern usage, watch is usually a contraction of wristwatch, a designation for the most popular style of timekeeping device worn on the wrist.
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