Important Collectors’ Wristwatches, P...

Geneva, Nov 16, 2008

LOT 489

Spring Detent Chronometer French, Royal Exchange, London, No. 5628. The case with London hallmarks for 1822-1823. Extremely fine, large, 18K gold pocket chronometer with spring detent escapement.

CHF 9,000 - 11,000

USD 8,500 - 10,000 / EUR 5,700 - 7,000

C. Four-body, ?bassine et filet?, engine-turned ?grains d?orge?, polished bezel and border, reeded band. Hinged gold cuvette. D. Engine-turned silver, applied radial gold Roman numerals, outer dot minute divisions, subsidiary seconds. Blued steel Breguet hands.M. 46 mm., matte gilt, three-quarter plate with detachable foliate engraved plate for the barrel, cylindrical pillars, third, fourth and escapement pivots with jewels in screwed gold chatons, fusee and chain, Harrison?s maintaining power, Earnshaw-type spring footed-detent escapement with brass escape wheel, free-sprung two-arm bimetallic compensation balance with wedge-shaped brass weights and mean time adjustment screws, blued steel helical balance spring with terminal curves, diamond endstone. Dial and movement signed. Diam. 60 mm.


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Grading System
Grade: AA

Very good

Case: 3

Good

Movement: 3*

Good

Overhaul recommended, at buyer's expense

Dial: 3-9-01

Good

Scratched

HANDS Original

Notes

Santiago James Moore French Is recorded as working at Royal Exchange and Sweetings Alley, London, circa 1810-1840.