A gold and enamel open faced keyless cylinder fob watch, Swiss, circa 1900,

細節
A gold and enamel open faced keyless cylinder fob watch, Swiss, circa 1900,
white enamel dial with Roman numerals, outer Arabic five minutes, Louis hands, frosted gilt movement jewelled to the third and with wolf's tooth winding, engine turned gold cuvette, case with applied cartouche set with an oval enamel plaque depicting a cherub, diameter 34mm.
See Colour Illustration (Plate 5)