ZENITH, circa 1920. Pocket watch in 18K (750 thousandths) yellow gold with gold cuvette, white enamel dial, painted Breguet numerals and small seconds, mechanical movement with pendant winding, lever escapement, compensated balance wheel, blued steel 'Breguet' balance spring. Dial and movement signed, N° 2'304'022. Diameter: 47 mm. Gross weight: 68.5 g. Operation not guaranteed, micro-scratches from use, several dents on the reverse. For this lot, SC E & S PORTIER was assisted by Géraldine Richard, SFEP expert.