41. Tiffany & Co, Geneva. An 18K gold keyless wind open face chronograph pocket watch Tiffany & Co, Geneva. Chronographe de poche à cadran ouvert en or jaune 18K (750) remontoir au pendant Date: Cira 1910 Movement: Swiss lever, cut and compensated bi-metallic balance, wolf's tooth winding, No.1981 Dial: White enamel, black Roman numeral hour markers, black outer minute track and 1/5th second divisions with red 5 minute markers, subsidiary seconds at 6, blued steel spade hands, centre chronograph hand Case: Polished round, monogram to back, chronograph pusher to crown, No.1901 Signed: Case & dial Size: 52mm Weight: 127,46g