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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

    JOHN R. ARNOLD, LONDON, NO.303. CIRCA 1810

    Price Realised  

    Estimate

    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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    COMPARATIVE LITERATURE:
    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.

    Special Notice

    No VAT will be charged on the hammer price, but VAT at 15% will be added to the buyer's premium which is invoiced on a VAT inclusive basis.