259Franck Muller. A fine 18ct gold automatic dual time zone calendar wristwatch
Master Banker, Ref. 6850 MB, Number 100,
Jewelled Cal: 2800 automatic movement with platinum rotor, silvered guilloché dial with white printed outer five minute divisions, black Arabic numerals, blued steel hands and sweep centre seconds, with platinum rotor, blue engine turned dial with luminous Arabic numerals, sweep centre seconds, luminous hands, round date aperture at 3, two subsidiary time dials, polished gold tonneau case with back held by 4 screws, fitted factory leather strap with 18ct gold buckle. 34mm.