Ocean Biretrograde (Reference 400-UABI36W). A white gold and diamond-set automatic wristwatch with retrograde day, second and mother-of-pearl dial. Circa 2007

The Harry Winston Ocean Biretrograde is the flagship creation of the maison’s nautical‑themed Ocean Collection, a line that merges contemporary sportiness with high horology complexity and Harry Winston’s legendary diamond setting expertise. Engineered with 100 meter water resistance, the model balances robust construction with an intricately animated dial architecture. Its defining feature is the signature biretrograde display, in which two retrograde indicators sweep gracefully across their respective arcs before snapping instantaneously back to zero at the end of each cycle, a dynamic, mechanical flourish that has become emblematic of the Ocean aesthetic.

The watch is in very good overall condition with minor signs of surface wear, all diamonds are nice and intact. The movement is running at the time of cataloging, however, it was not tested for the accuracy of time or duration of the power reserve and may need service at the buyer's discretion. Please be advised that bands made of materials derived from endangered or otherwise protected species (i.e. alligator and crocodile) cannot be shipped outside the country of sale. We reserve the right to remove these bands prior to shipping. Please note that this item is final sale and not eligible for return. This item ships from Hong Kong; applicable import duties, taxes, or fees may be assessed by the destination country. Domestic alternatives may be available..