8 inches.


The ebonised fruitwood and gilt-brass bound case, the shallow concave stepped top-moulding inset with bevelled glass. The cornice with decorative moulding above narrow brass binding, abutting the brass line inlaid front door, with arched glazed dial aperture with inner chamfered silvered-brass bezel, the sides with rectangular chamfered glass and glazed back door. The moulded base with inlaid brass border, standing on brass compressed-bun feet screwed to triangular brass plates.


The 3 inch circular white vitreous enamel dial with Roman hours and outer minute track, signed Arnold, 84 The Strand, LONDON, indicated by pierced blued-steel moon hands, and set within a profusely engraved and chased gilt-brass mask.


The rectangular plates held by four turned pillars, the single barrel and fusee, rear-wound and chain-driven with Harrison’s maintaining power, to the gilt platform with underslung lever escapement and cut bimetallic compensated balance with flat blued-steel helical spring. The backplate shaped to take the platform, with Slow/Fast regulation, and signed Arnold, LONDON, 421, with brass hand-setting knob.


8 days.


Anthony Woodburn;
Private collection UK.


V Mercer, John Arnold and Son, Chronometer Makers, 1762-1843, 1972;

H Staeger, 100 Years of Precision Timekeepers from John Arnold to Arnold & Frodsham 1763-1862, 1997.


John Roger Arnold, son of the great chronometer maker and inventor, John Arnold, was born in 1769 and served an apprenticeship with both his father and the eminent watchmaker Abraham Louis Breguet. He became Free of the Clockmakers’ Company in 1796 and the following year he joined his father in the firm of Arnold & Son. Following the death of John Arnold in 1799, John Roger continued the business on his own, becoming Master of the Clockmakers’ Company in 1817. Between 1830 and 1840 he went into partnership with Edward John Dent and after his death in 1843 the business was bought by Charles Frodsham.