A watch timing machine or timegrapher is a machine that acoustically measures the ticks of a mechanical

watch A watch is a portable timepiece intended to be carried or worn by a person. It is designed to keep a consistent movement despite the motions caused by the person's activities. A wristwatch is designed to be worn around the wrist, attached ...

to assess its accuracy and enable calibration. This device calculates the

amplitude The amplitude of a periodic variable is a measure of its change in a single period (such as time or spatial period). The amplitude of a non-periodic signal is its magnitude compared with a reference value. There are various definitions of a ...

, beat rate, and beat error of a mechanical watch, and provides a summary of these figures after the watch is connected to the device for a fixed interval of time. The information recorded by this instrument is used by horologists and

watchmakers A watchmaker is an artisan who makes and repairs watches. Since a majority of watches are now factory-made, most modern watchmakers only repair watches. However, originally they were master craftsmen who built watches, including all their pa ...

to help determine if the timepiece's movement is in need of servicing, or a complete overhaul, to restore its

timekeeping Time is the continued sequence of existence and events that occurs in an apparently irreversible succession from the past, through the present, into the future. It is a component quantity of various measurements used to sequence events, t ...

accuracy.https://www.bobswatches.com/watch-resources/how-to-use-a-timegrapher Why You Should Own A Timegrapher (and how to use it) ''Bob's Watches'', JANUARY 07, 2015 It is also used to determine if a newly produced timepiece is accurate, prior to being sold or released. These companies manufacture watch timing machines:
Delph Electronics

Mumford Micro Systems
* TYMC * Vibrograf
Witschi

References

External links

A Youtube video of a timing machine
{{Time measurement and standards Watches Horology Timekeeping components