Heavy English silver pocket watch chronometer Circa 1802

Silver chronometer by John Roger Arnold
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A large, heavy pocket chronometer with Arnold’s spring detent escapement and Arnold’s OZ balance, circa 1802.
A silver case, consular case, case maker’s punch mark “T.H.” (Thomas Hardy). Enamel dial, roman numerals, subsidiary dial, full plate movement, chain/fusee.
This is a prime example of British precision watchmaking, large, heavy, impressive and beautiful and also highly complicated and created by the hand of a master.
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Diameter: 63 mm
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Weight: 204 g
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Signed: John Roger Arnold  London
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John Roger Arnold (1769 – 1843)
He was born in 1769 as the son of the watchmaker John Arnold.
The craft of watchmaking he began in 1783, first apprenticing with his father and from 1792 on with Abraham-Louis Breguet. He was admitted to the Freedom of the Clockmakers Company in 1796 and became a Master in 1817. After the death of his father, John Roger continued the company on his own until 1830. In this year he moved to Strand 48 and started a 10-year partnership with E.J. Dent; business went well during this time and the partners had the possiblitiy to research and experiment, in particular they investigated the influence of magnetism on chronometers. When the partnership ended in 1840, Arnold continued his work until his death in 1843.