ROLEX. A STAINLESS STEEL AUTOMATIC DUAL TIME WRISTWATCH WITH SWEEP CENTRE SECONDS, DATE AND BRACELETSigned Rolex, Oyster Perpetual GMT-Master, retailed by Cartier, Movement No. D488342, Case No. 2861305, Ref. 1675, circa 1970With nickel-finished lever movement, 26 jewels, the black dial with luminous baton, dot and triangular numerals, luminous mercedes hands, central arrowhead hand for second time, sweep centre seconds, the tonneau-shaped water-resistant-type case with revolving blue 24-hour bezel, screw back and screw down crown, together with a stainless steel Rolex Jubilee bracelet with deployant clasp, case, dial and movement signed, lugs numbered 3172239 mm. diam.; overall length approximately 200 mm.