Baume & Mercier, an 18ct gold dual time zone wristwatch ref 606976 no 32003BZ circa 1985, two independent manual winding movements, fully jewelled, one black and one off-white coloured dial, yellow gold dauphine hands, inverted dual horseshoe-form case, bezels with rope motif, two dials hinged in the middle, case, dial and movement signed, length 53 mm.