18 ct. yellow gold, marked. Automatic. Satinised, gold coloured dial with diamond and illuminated indexes, illuminated hands, central second, date aperture, labellled 'Rolex Oyster Perpetual Datejust', 'Superlative Chronometer Officially Certified', 'TSwissT'. Folding clasp marked 'Rolex Geneve RolexSA 750 18k', numb. 8570. Chronometer guarantee (Nr. 6696912, Ref. 6917) of 1981. Small traces of usage. Diameter 25,5 mm, weight c. 68 g.