English 18k gold chronometer with power reserve Circa 1866

Half hunting cased chronometer by Charles Frodsham
–
An English 18 carat gold half hunting cased chronometer with power reserve, circa 1866. Gilt finished 1/2 pate chain fusée movement, Earnshaw spring detent escapement, large bimetallic balance with cylindrical compensation weights, freesprung blued steel helical hairspring, diamond endstone, the top plate with the engraved Royal Warrant and the crest for the Medaille d’Honneur for the World Exhibition of 1855. Gold cuvette engraved Henry C.L. Warde, Oswald T. Hodgson, 1919. White enamel dial, Roman numerals, outer railway minute divisions, two subsidiary dials for 24 hour power reserve and constant seconds. Engine turned case, inlaid black enamel Roman numerals on blank chapter ring to the glazed aperture in the front. Case and cuvette stamped with casemaker’s initials ‘JW’ (Joseph Walton) and London date letter for 1866, dial and movement signed and numbered.
–
Diameter: 52 mm
–
Signed: Charles Frodsham 84 Strand London AD Fmsz