A small slim gold open faced pocket watch, circa 1820,

細節
A small slim gold open faced pocket watch, circa 1820,
engine turned silvered dial with Roman numerals, Lepine calibre gilt movement with cylinder escapement and plain three armed balance, gold cuvette signed Ch. Oudin, Eve. De Breguet A Paris, No.7450, engine turned case, diameter 28mm, with gold watch chain and male key.
see front cover illustration.