Rolex Cosmograph Daytona An attractive bi-color wristwatch with chronograph, inverted six dial, original box and Rolex seal hang tag Movm. No. 38398, Ref. 16523, Cal. 4030, Case No. E717758, Dimensions 40 mm, circa 1990, Origin Swiss Case: steel/18k gold, screw back ref. 16500, gold bezel with tachy scale, screwed "Triplock" winding crown, screwed pushers, steel/gold "Oyster" bracelet ref. 78363.18, endlinks stamped 403, clasp P1, bracelet length 165 mm, total length 200 mm. Dial: black, inverted six dial. Movm.: Automatic. Bicolour wristwatches are continuously gaining popularity – the combination of two different materials has its own particular appeal and lends the timepiece a breathtaking vibrancy. This reference 16523 model is fitted with Zenith calibre 4030; the bicolour case made of 18K yellow gold and steel features a beautiful jet black dial with an upside-down "6" and champagne-coloured subsidiary dials. An entirely harmonious watch, original in all its parts and evidently treated with utmost care by its previous owner. Case: very good, slightly worn. Dial: very good. Movm.: very good, capable of running, cleaning recommended. Case: very good, slightly worn. Dial: very good. Movm.: very good, capable of running, cleaning recommended.