1. DENT 'Chronometer Maker to the Queen' London. No 1901


    The finest (I believe) surviving complete 8-day box chronometer by this famous maker, circa 1845. Beautifully figured 3-piece plain mahogany box with thermometer, as originally supplied, the typically bold enamel plaque on the middle section bearing the makers name and number 1901, bowl and key stamped with the same number - see pics. The brass furniture retaining most of the original lacquer, the bezel of early form being without exaggerated internal sight ring and fitted with domed, convex glass. Double-frame reverse fusee movement retaining most of its original spotting. Spring-detent escapement of dovetail form, as originally devised by Robert Pennington, 10-turn blued-steel helical balance-spring acting with a fine example of Dent's Patent 'staple' compensation balance. Silvered dial with state-of-wind indication and offset seconds, original blued-steel hands. Box 18 x 18 x 18.5 cm. Together with the original mahogany guard box, as shown.

    Edward John Dent, one time partner of John Roger Arnold, quickly became one of London's greatest and best known chronometer makers, publishing numerous tracts on the subject as well as designing various compensation balances aimed at overcoming the so-called middle temperature error, of which this is perhaps his most famous. See also the book on E J Dent by Vaudrey Mercer and the book on the Arnold and Dent firms by Hans Staeger.

    Accompanying documents show that this chronometer was originally supplied to Thomas Fortescue, 1st Baron Clermont. It would appear that this 8-day machine, No 1901, was never used at sea which perhaps helps explain its exemplary original condition - even the brass box key, held by an old blue cord, is original.

    The box has just been lightly cleaned and polished and has no real faults to speak of. Movement and dial both in very good and original condition, with just a few minor age spots, the original detent in perfect condition as is the balance. Guard box also in very good original condition. Cleaned and guaranteed. NB: This chronometer is in the United Kingdom and will need specialist shipping and handling. Please enquire as to likely costs.