This Omega Equinoxe (Ref. 186.0013 / 386.0813) is a striking and rare design from the early ’80s, a period when Omega experimented with innovative forms and technical solutions out of necessity. The model is part of the Equinoxe line and is known for its unique reversible case, allowing the watch to display two different dials. Thanks to this clever 'Reverso' design, the case can be easily flipped within the strap. This allows you to effortlessly switch between two styles, a distinctive feature that makes this model beloved by collectors of vintage design watches. This piece features an elegant bicolor combination of steel and gold accents, perfectly suited to the aesthetics of the early ’80s. The watch is in good vintage condition, with slight signs of use that are appropriate for its age of over four decades. On one side, there are some scratches on the glass, but nothing to be overly concerned about. Inside is the special Omega Caliber 1655, a technically interesting double quartz movement specifically developed for this type of reversible watches. This movement is known for its reliability and represents a unique piece of Omega watchmaking technology from the quartz era. It was fitted with new batteries in 2025 and all functions work properly. The integrated Bi-Color Omega bracelet is in very good condition, showing no stretch or significant wear. The bracelet fits larger wrists up to approximately 19.5cm. The watch comes with: Luxury watch box, Our warranty report, 1-year warranty. A rare and characterful Omega from the early '80s, with a unique reversible design that is remarkable both technically and aesthetically. A beautiful collector's piece for lovers of vintage Omega watches and striking design.