细节
Charles Frodsham. A fine 18K gold hunter case keyless pocket chronometer with power reserve
Signed Chas. Frodsham, 04828, AD.Fmsz, 84 Strand, London, stamped with London date letter for 1874
Gilt-finished half-plate chain fusée movement, Earnshaw spring detent escapement, large bimetallic compensation balance, free sprung blued steel helical hairspring, diamond endstone, gold cuvette, tinted enamel dial, Roman numerals, two sunk subsidiary dials for 24 hour power reserve and constant seconds, plain circular case, case and cuvette stamped with casemaker's initials G.A.P. for George Augustus Potter and London date letter for 1874, dial and movement signed and numbered
53 mm. diam.