38. An 18K gold 'Chrono-Micrometer' keyless wind open face chronograph pocket watch Chronographe 'Chrono-Micrometer' à cadran ouvert en or jaune 18K (750) remontoir au pendant Date: Chester Hallmark for 1903 Movement: English lever Chrono-Micrometer, Fourfold Patent Dial: White, black Roman numeral hour markers, black outer 1/5th second divisions and outer minute track, subsidiary dials at 12 and 6 for reverse seconds and 30 minute recording, gilt spade hands, centre chronograph hand Case: Polished round, 18K gold cuvette, chronograph button to crown, monogram to back, No.1571 85 Signed: Dial & movement Size: 53mm Weight: 128,38g