ZENITH Yellow gold (585) gousset watch, the reverse centered with a blank cartouche on a guilloché background. Signed dial with white enamel background, hours in Roman numerals and second hand at 6 o'clock. Inside lid with goldsmith's hallmark. Metal dust cover engraved "Grand prix Paris 1900, médaille d'or Genève 1896, spiral Breguet, ZENITH". Hand-wound mechanical movement, signed. Gross weight: 64 g. Diameter: 48 mm. Missing bezel.