Frank Muller, rare platinum and diamond Chronometro watch, 950 platinum, case pave set with factory set fine brilliant cut diamonds, blue guilloche enamel dial, with oval ivory coloured inner dial with black Roman numerals, platinum hands, manual wound movement, dial signed 'Frank Muller Geneva', back case signed 'Frank Muller, Geneva, Mater of Complications', 'No #1,7502S6D, Chronometro', on an original indigo Frank Muller band, with original Frank Muller platinum buckle, good working order, includes original box and papers, case 29 mm