1986. 18 ct. yellow gold, marked. Automatic. Black dial, diamond indizes, illuminated indizes and golden hands, central second, date aperture, week day aperture, labelled 'Rolex Oyster Perpetual Day-Date Superlative Chronometer Officially Certified T Swiss Made T'. Foldingclasp marked 'Rolex SA 750 Geneve Swiss Made 18 k', numb. 8385. Traces of usage. Diameter 36 mm, weight approx. 145 g. Details and numbers Kal. 3055/1768404, Ref. 18038,Serien-Nr. 919 1901 according ot expertise of Gerhard Cordes from January 2015.