A 9ct. gold open faced keyless lever pocket watch,

细节
A 9ct. gold open faced keyless lever pocket watch,
white enamel dial with Roman numerals, subsidiary seconds and signed J.W. Benson, London, similarly signed matt gilt three quarter plate movement with screwed chatons and blued steel screws, insribed The Field, Best London Make, 0.8173, case with milled band, the engine turned back with a central engraved monogram, diameter 52mm.