Pre-owned Rolex Sea-Dweller ref 126603 (2020) was a first-of-its-kind when it came to market in 2019. For decades, the Sea-Dweller was strictly a no-nonsense, all-steel professional dive watch, made for saturation divers, not for flash. Then in 2019, Rolex introduced the first-ever Yellow Rolesor version, pairing Oystersteel with 18k yellow gold. It caught a lot of people off guard. A two-tone Sea-Dweller? That was new territory. The formula itself remained deeply rooted in professional diving. It still has the 43mm case, 1,220 meters of water resistance, helium escape valve, and the caliber 3235 with a 70-hour power reserve. But the yellow gold bezel, crown, and center links add warmth and presence that the all-steel versions never had. It’s still a professional-grade dive watch. It just happens to look equally at home above sea level now. Shop Rolex Sea-Dweller Collection