- A
marine chronometer is a
precision timepiece that is
carried on a ship and emplo**** in the
determination of the ship's
position by
celestial navigation...
-
watch that was both
practical and accurate, and also
brought the term "
chronometer" into use in its
modern sense,
meaning a
precision timekeeper. His technical...
- (1747–1806),
English chronometer maker, London,
pocket and
marine chronometer.
George Margetts (1748–1808),
English chronometer maker, London,
pocket and marine...
- of all
chronometers listed here is
either box or
pocket. A
boxed chronometer is
mounted on
gimbals attached to its box. A
pocket chronometer is in the...
-
adoption in the 19th
century made the
fusee obsolete.
Complicated pocket chronometers and
astronomical watches with many
hands and
functions were made...
- 1768, to rate his
pocket chronometers. It is now in a
museum in Le Locle.
Minute repeaters,
complicated watches and
pocket chronometers carried the re****tion...
-
Model 21
marine chronometers for the US Navy, 1,500 for
merchant shipping, and 500 for the US Army
during the war. The
Model 22
Chronometer Watch followed...
-
railroad chronometers. This led to the
adoption in 1893 of
stringent standards for
pocket watches used in railroading.
These railroad-grade
pocket watches...
- A
nautical chronometer made by
Thomas Earnshaw (1749–1828), and once part of the
equipment of HMS Beagle, the ship that
carried Charles Darwin on his...
- 1776) was an
English carpenter and
clockmaker who
invented the
marine chronometer, a long-sought-after
device for
solving the
problem of how to calculate...
