Lot No. 30 (92nd Auction)
John Roger Arnold, London, Invt. et Fecit , Movement No. 1685, Case No. 1685, 62 mm, 184 g, circa 1797

A pocket chronometer "Of The Best Kind" with spring detent escapement and Arnold's Z balance
Case: silver gilt consular case, polished, à goutte, case maker punch mark "TH" (Thomas Hardy), turning pendant with applied foliate, large lateral hinge. Dial: enamel, off-white, radial Roman numerals, auxiliary seconds, numbered, signed, blued spade hands. Movm.: full plate movement, frosted, gilt, signed, keywind, chain/fusee with Harrisons maintaining power, moulded cylindrical pillars, steel escape wheel, spring detent escapement, Z-balance with 2 weights and 5 screws, blued helical freesprung balance spring with both sides passing terminal curves, very fine florally engraved balance cock, chatoned jewels on chronometer, seconds and intermediate wheel, chatoned diamond endstone on balance.

John Roger Arnold (1769-1843)
John Roger Arnold was the son of renowned British horologist John Arnold. He began his apprenticeship with A.-L. Breguet in Paris in 1792. The younger Arnold became a member of the Clockmaker's Company in 1796 and was a Master in 1817. He took up a partnership with E.J. Dent in 1830 and the two craftsmen experimented heavily during their work together; in particular they concentrated on the effects of magnetism on chronometers. Dent left Arnold in 1840, whereupon Arnold continued working on his own but died only three years later. Charles Frodsham bought the business after Arnold's death in February 1843 and it flourished until 1858 under the name Arnold and Frodsham.
Estimate  13,000 - 18,000 €

Price Realised  15,500 €
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