DESCRIPTION:
EPW - John Arnold, London, gold fusee pocket chronometer with spring detent escapement and helical hairspring, 52mm, 18K gold OF consular case bearing London hallmarks for 1825 appears purpose made for this watch, incuse casemaker's "I M" mark, white enamel dial, KWKS, Arnold spring detent escapement with exposed detent in channel of plate, OZ balance with helical steel hairspring, diamond endstone, gilt mvt with pierced and engraved balance cock, s#66/367. Gross weight of assembled watch 88.5 dwt (137.7 g). An attractive example of John Arnold's "of the second kind" pocket chronometer movement, this piece has the typical fractional serial number sequence of this series with numerator and denominator having a 301 digit differential and this example features the OZ balance which was introduced by Arnold between 1781 or 1782 and remained in use until 1791 when Arnold introduced his Z style balance. From the collection of Charles B. Wallace.
CONDITION:
Mvt: Running, excellent cosmetic mvt condition overall, excellent gilt tone, some fine scratches with majority being around plate pin areas; dial with some hls near edge between 7 and 8; near mint hands; case shows little wear, mild dent to upper left of rear and to corresponding position of fixed cuvette, mild dent to band at 9:30; tight bow; good glass crystal.
ESTIMATE:
$5000
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$10000
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