Lot Essay
This watch was used in the trials to establish the longitude of Valencia in Ireland.
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SIGNED J.R. ARNOLD, 84 STRAND, LONDON, NO. 6063, 1840S
Details
Arnold. A good silver openface pocket chronometer
Signed J.R. Arnold, 84 Strand, London, no. 6063, 1840s
The frosted gilt chain fusee movement with free sprung bimetallic balance, flat blued steel hairspring with Breguet overcoil and diamond endstone, Earnshaw spring detent escapement with jewelled locking stone, dust shroud to the winding arbor, the white enamel dial with Roman numerals, large subsidiary seconds and gold spade hands, in plain silver case with gold hinges to the bezel and back, casemaker's mark CBH for Cornelius Brook Holliday, with three tier mahogany observation box and key, dial and movement signed, case and movement numbered
57 mm. diam.
London 1840
Signed J.R. Arnold, 84 Strand, London, no. 6063, 1840s
The frosted gilt chain fusee movement with free sprung bimetallic balance, flat blued steel hairspring with Breguet overcoil and diamond endstone, Earnshaw spring detent escapement with jewelled locking stone, dust shroud to the winding arbor, the white enamel dial with Roman numerals, large subsidiary seconds and gold spade hands, in plain silver case with gold hinges to the bezel and back, casemaker's mark CBH for Cornelius Brook Holliday, with three tier mahogany observation box and key, dial and movement signed, case and movement numbered
57 mm. diam.
London 1840
Literature
Staeger, 100 Years of Precision Timekeepers from John Arnold to Arnold & Frodsham 1763-1862, 1997, 535 and 538