Jeremy Thacker
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Jeremy Thacker was a possibly apocryphal 18th-century writer and watchmaker, who for a long time was believed to be the first to have coined the word "chronometer" for precise clocks designed to find
Chronometer of Jeremy Thacker c. 1714.
Clock
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A clock or chronometer is a device that measures and displays time. The clock is one of the oldest human inventions, meeting the need to measure intervals of time shorter than the natural units such a
An analog pendulum clock made around 18th century
Casio F-91W digital watch, a historically popular watch introduced in 1989
Simple horizontal sundial
The flow of sand in an hourglass can be used to keep track of elapsed time.