Pre-owned Rolex Sky-Dweller ref 326939 (2013) comes from the early years of Rolex’s most complex modern watch. Introduced in 2012, the Sky-Dweller was designed with travelers in mind, combining an annual calendar with a second time zone in a way that remains surprisingly easy to use. This reference features Rolex’s White Rolesor construction, pairing a stainless steel Oyster bracelet with an 18k white gold fluted bezel. The bezel isn’t just decorative. It forms part of Rolex’s Ring Command system, which allows the wearer to rotate the bezel to select different functions when setting the watch, including the date, local time, and reference time. The ivory dial keeps the layout elegant despite the complexity. Polished Roman numeral hour markers add a slightly dressier feel, while the off-center 24-hour disc tracks a second time zone. Around the dial, small rectangular windows indicate the month as part of the annual calendar system. Inside is the Rolex caliber 9001 automatic movement, one of the most complicated calibers the brand has ever produced. Even with all that mechanical depth, the Sky-Dweller still wears like a familiar Rolex on the wrist. Just with a lot more going on under the dial. Shop Rolex Sky-Dweller Collection