ROLEX 18k yellow gold gents wristwatch Oyster Perpetual Day-Date, self winding, Switzerland around 1977, reference 18078, superlative chronometer officially certified, president bracelet & bezel with bark engraving, screwed-down case back & winding crown, champagne coloured dial with raised indices, display of hours, minutes, second, day & date under sapphire loupe glass, calibre 3055, diameter approx. 36 mm, length approx. 19 cm, condition 2-3, property of a collector