Rolex "Oyster Perpetual Datejust Superlative Chronometer officially certified" - so called "Lady President", Case No. 8645142, Movement No. 246638, Ref. 69138, Cal. 2135, 26 mm, circa 1984

A lady's elegant automatic, diamond-set wristwatch with centre seconds and date
Case: 18k gold, screw back ref. 69000A with dedication engraving, diamond-set bezel, screwed "Twinlock" winding crown, diamond-set 18k "President" gold bracelet with deployant clasp. Dial: night blue, applied diamond-set indexes, luminous baton hands. Movm.: rotorwind movement, rhodium-plated, ground, Glucydur balance, incabloc shock protection for balance.