45. An 18K gold keyless wind open face chronograph pocket watch Chronographe de poche à cadran ouvert en or jaune 18K (750) remontoir au pendant Date: Circa 1920 Movement: Gilt full plate, Swiss lever, cut and compensated bi-metallic balance wheel, column wheel chronograph Dial: White, black Arabic numeral hour markers, black outer 1/5th second divisions with Arabic 5 minute markers, red outer tachymetre scale, subsidiary dials at 6 and 12 for seconds and 30 minute recording, gilt spade hands, blued steel centre chronograph hand Case: Polished round, 18K gold cuvette, chronograph pusher button to pendant at 12, No.66905 Size: 51mm Weight: 91,87gr