English 18 carat gold open faced with silver dial Circa 1822

Very important and extremely heavy pocket chronometer
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An extremely heavy English pocket chronometer, Earnshaw type, important case maker Louis Comtesse, circa 1822.
An 18 carat gold pocket watch, engine turned, reeded midsection, detent movement in type of Earnshaw, excellent quality with diamond endstone.
Engraved grotesque face, chronometer balance, helical hairspring, signed and numbered plate, splendid graved movement with screwed golden chatons.
Signed and numbered silver dial with golden numerals, Breguet steel hands, excellent condition, rarely used, very fine English collector’s watch.
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Diameter: 61 mm
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Weight: 210 g
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Signed:  Louis Comtesse  London