In dictionaries:
marine chronometer
A timepiece used as a portable time standard at sea so as to enable the determining of longitude by means of celestial navigation.
pocket chronometer
Precision timekeeping device, easily portable.
Chronometer watch
A chronometer (khronómetron, "time measurer") is an extraordinarily accurate mechanical timepiece, with an original focus on the needs of maritime navigation.
box chronometer
Precision timekeeping device for navigation.
to rate a chronometer
Assessing accuracy of timekeeping device.
Omega Marine Chronometer
the first quartz wristwatch ever to be awarded certified status as a marine chronometer.
Longitude by chronometer
a method, in navigation, of determining longitude using a marine chronometer, which was developed by John Harrison during the first half of the eighteenth century.
a watch or chronometer
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