ROLEX 18k yellow gold ladies wristwatch Oyster Perpetual Datejust, self winding, Switzerland around 1985, reference 69178, superlative chronometer officially certified, president bracelet, blue dial with 10 in yellow gold set diamonds, bezel aftermarket on customers request diamonds set, screwed-down case back & winding crown, display of hours, minutes, sweep seconds & date, sapphire crystal has to be renewed, 29 jewels, calibre 2135, flat rim balance, flat hairspring, Kif-shock-absorber, diameter approx. 26 mm, length approx. 17 cm, condition 2-3