A Rolex 18 ct gold Oyster Perpetual Day-Date wristwatch, having a calibre 3055 Superlative Chronometer movement, the bezel and central links of the 18 ct gold President bracelet bark-textured, boxed with 1980 Rolex Warranty and Official Chronometer Certification document and "Your Rolex Oyster" booklet. [Running when catalogued, accuracy and reliability un-tested. The day function occasionally part-changes at midnight, then fully advances around 3:30 am.]