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Marine chronometer, No. 512.

Marine chronometer, No. 512.
Marine chronometer, No. 512.
© National Maritime Museum, London
Repro ID: D8744
Description: Following the work of John Arnold, the London watchmaker Thomas Earnshaw (1749-1829) further simplified the designs of the pocket and marine chronometers into their modern, readily reproducible form. This is a typical example of Earnshaw's marine chronometers, made from the early 1790s until his retirement in about 1820. The design is little different from the marine chronometer of the mid-20th century.
Creator: Thomas Earnshaw
Date: c.1794
Credit line: National Maritime Museum, London
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National Maritime Museum/Royal Observatory GreenwichNew Opportunities Fund 
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