A lever pocket chronograph pocket watch movement and dial Dent, London, early 20th century The frosted three-quarter plate jewelled going-barrel keyless movement with sprung split bimetallic balance and signed with triangular DENT trademark and inscribed WATCHMAKER TO THE KING, No. 54825, 61 Strand & 4 Royal Exchange, LONDON to the mainspring barrel pivot plate, the white enamel Roman numeral dial with Arabic five minutes to outer track, twin subsidiary running seconds and chronograph minutes dials flanking repeat trademark and address to centre, with fine blued steel spade hands and star decorated centre seconds counter, 45mm (1.75ins approx.) The highly renowned clock and watch making business Dent was established by the talented horologist Edward John Dent, who at the age of 17, transferred his apprenticeship from the trade of tallow chandler to watchmaking under the charge of Edward Gaudin in 1807. By 1817 he had become well known as a watch and clockmaker receiving commissions from the Admiralty for a 'Standard Astronomical Clock' and pocket chronometers for the Colonial Office Africa Expedition. In 1830 Dent went into partnership with the renowned watch and chronometer maker John Roger Arnold which continued until 1840 when he left and set up business alone as E.J. Dent at 82 Strand, London, primarily making marine chronometers, watches and precision clocks. In 1843 the firm expanded taking on a second premises at 33 Cocksur Street, with the Strand premises moving down the road to number 61 by 1851. In 1852 Edward Dent successfully tendered to make the 'great clock' to be housed in Stephen's tower at the New Palace of Westminster. The clock was completed by 1859, apparently at a financial loss to the firm, however it ensured that Dent became a household name synonymous with fine clockmaking. Unfortunately Edward John Dent did not live to see the installation of the 'great clock' as he died in 1853. He was succeeded by his stepson Frederick Rippon Dent, who, in partnership with his brother Richard, continued to expand the business. By 1862 the firm had added 34 Cockspur Street and 34 & 35 Royal Exchange to their list of addresses and, although having seen natural passage of ownership over the intervening years, the business still continues to trade today as Dent & Co.