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Parkinson & Frodsham, Change Alley, London
, Movement No. 743, 57 mm, 171 g, circa 1822A heavy pocket chronometer with spring detent escapement
Case: silver, tiered, polished, consular case, case maker's punch mark "CL" (Charles Lupton, 6 St. James's Place, Clerkenwell). Dial: enamel, radial Roman hours, auxiliary seconds, signed, gold spade hands. Movm.: full plate movement, frosted, gilt, signed, keywind, chain/fusee, bimetallic chronometer balance with 4 screws and 2 movable trapezoid weights, freesprung blued helical balance spring, chatoned diamond endstone on balance.
#40379
Case: very good, slightly worn
Dial: very good
Movm.: very good, capable of running
Dial: very good
Movm.: very good, capable of running