A gold open faced keyless lever pocket watch, Patek Philippe, No.38381, circa 1900,

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A gold open faced keyless lever pocket watch, Patek Philippe, No.38381, circa 1900,
white enamel dial with Roman numerals and outer Arabic five minutes, subsidiary seconds, moon hands, frosted gilt movement jewelled to the third and with wolf's tooth winding and bimetallic compensation balance, signed and numbered gold cuvette, signed and numbered plain polished case, diameter 44mm, with yellow metal chain and associated Patek Philippe box and certificate.