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    Sale 7604

    Important Clocks and Marine Chronometers

    1 July 2008, London, King Street

  • Lot 20

    A George III white marble, brass and ormolu-mounted seven day mantel chronometer


    Price Realised  


    A George III white marble, brass and ormolu-mounted seven day mantel chronometer
    John R. Arnold, London, No.303. Circa 1810
    CASE: well moulded drum-shaped case with fluted bezel and with conforming edge to the socle, on stepped rectangular plinth, with bayonet-fixed ormolu bezel and sliding into the case on faceted runners secured to the cylindrical brass drum, with rear winding cover secured with a spring catch
    DIAL: Roman dial with dot minute track, seven day up/down sector and subsidiary seconds ring, signed Arnold London and numbered 303, gold hour, minute and up/down hands, blued steel seconds hand--90 mm. diameter
    MOVEMENT: two tier later spotted plates signed John R. Arnold London Inv. et fecit/No.303, single chain fusee with maintaining power
    ESCAPEMENT: Arnold spring detent with adjustable heat compensatation weights at the screw-threaded outer ends (Z balance), blued steel helical spring and diamond endstone
    13¼ in. (33.5 cm.) high

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    Hans Staeger, 100 Years of Precision Timekeepers from John Arnold to Arnold & Frodsham 1763-1862, Stuttgart, 1997, p.356, fig.4.
    The present chronometer is comparable to an example that was in the Arnold family for many years and is now in the collection of the Worshipful Company of Clockmakers.

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