Yellow gold (750) collar watch; Back cover centered with a medallion on a partially black and blue enameled guilloché background. White enamel dial, hour markers with black-painted Roman numerals for the hours and blue-painted Arabic numerals for the minutes. Yellow gold (750) dust cover. Mechanical movement with key winding (with one key). With attached bezel. Gross weight: 21.4 g. - Diameter: 3 cm. Scratches and missing enamel.