Heavy English gold watch with spring detent escapement Circa 1802

Gold gentleman’s pocket watch by John Roger Arnold
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A heavy and fine 18 carat gold English gentleman’s pocket watch with spring detent chronometer escapement, circa 1802. Full plate movement, chain/fusee, spring detent escapement according to John Arnold, bimetallic Z-balance with 2 weights and 2 screws, freesprung blued helical balance spring with terminal curves.
White enamel dial with black Roman numerals, black outer minute track, subsidiary seconds at 6, gilt spade hands.
18 Carat gold polished later case hinged around with case maker’s punch mark TH. Signed dial and movement.
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Diameter: 53 mm
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Weight: 161 g
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Signed: Jn.R. Arnold, Inv’t et Fecit London
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John Roger Arnold (1769-1843)
John Roger Arnold (1769-1843) was born in 1769 as the son of the famous 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; The business went well during this time and the partners had the possibility 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.