John Roger Arnold. A fine and rare silver open face chronometer pocket watch Signed Jn. R. Arnold, London, Invt et Fecit, No.2159, London Hallmark for 1817
Lot 37
John Roger Arnold. A fine and rare silver open face chronometer pocket watch Signed Jn. R. Arnold, London, Invt et Fecit, No.2159, London Hallmark for 1817
Sold for £9,375 (US$ 15,047) inc. premium

Lot Details
John Roger Arnold. A fine and rare silver open face chronometer pocket watch
Signed Jn. R. Arnold, London, Invt et Fecit, No.2159, London Hallmark for 1817
Gilt finished full plate chain fusée movement, Arnold spring detent escapement, bi-metallic Z-balance with compensation weights, plain polished balance cock and foot, blued steel helical spring with diamond endstone, enamel dial signed Arnold 2159, with black Roman numerals and outer five minute divisions, large subsidiary seconds dial at 6, blued steel hands, later plain polished silver case hinged front, together with specially made mahogany deck watch style box, dial and movement signed
55mm.

Footnotes

  • John Arnold (1736-1799) was an English clockmaker who worked to improve the practicality and accuracy of the newly coined 'Chronometer' timekeepers. In 1782 Arnold patented the spring detent escapement and the bi-metallic compensation balance. Without any true commercial competition, Arnold produced hundreds of marine and pocket chronometers from his factory at Well Hall Eltham between 1783 and 1798.

    Arnold's son John Roger Arnold (1769-1843) served as apprentice for his father and Abraham Louis Breguet. His father and he founded the company Arnold & Son in 1787, a business that John Roger continued after his father's death in 1799. He became Master of the Worshipful Company of Clockmakers in 1817 and took John Dent into partnership between 1830 and 1840. After his death in 1843 the company was bought by Charles Frodsham.
Auction information

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