Franck Muller. An 18K gold automatic triple calendar tonneau form wristwatch
Model: Master CalendarReference: 5850MCDate: Circa 2000Movement: Jewelled Cal.2800Dial: Sunburst guilloché engraved blue, gilt Arabic numerals, gilt inner 1/5th second divisions and calendar markers, day and month apertures below 12, gilt leaf hands, further centre seconds and calendar handsCase: Brushed and polished tonneau form, back secured by 4 screws, quick set buttons at 2, 4 and 10, No.87Strap/Bracelet: Navy blue Frank Muller alligator leatherBuckle/Clasp: Signed 18K gold buckleSigned: Case, dial & movement Size: 31mm x 38mm Accompaniments: Franck Muller box