Breguet Marine Hora Mundi Ref. 3700 18 kt gold 2000's Movement and functions Automatic cal. 563, 25 jewels, outer city ring, world time, revolving by the crown. Case 18 kt yellow gold three-part case with back secured by 6 screws. Yellow gold 18 kt Breguet deployant buckle. 38mm Dial Silvered dial with sunken centre and engraved graticule lines, sweep central seconds, date aperture at 6. Roman numerals indexes Features Case, dial, movement and deployant clasp signed