The Rolex Sky-Dweller Ref. 336239 is an exceptional expression of Rolex’s modern approach to luxury travel watches, combining an 18K white gold case with sophisticated calendar and dual-time functionality. Measuring 42mm, the Oyster case presents a refined yet substantial presence on the wrist, while the Oysterflex strap introduces a contemporary, sporty character. 

The bright black dial provides a striking contrast against the 18K white gold case and features applied index hour markers for clear and elegant legibility. At the center, the traditional hour, minute, and seconds hands display local time, while the off-center 24-hour disc indicates a second time zone, making it easy to distinguish day from night. The annual calendar is displayed through apertures positioned around the circumference of the dial, indicating the current month, while the date appears at 3 o’clock beneath Rolex’s signature Cyclops lens. Surrounding the dial is the fluted, bidirectional rotatable Ring Command bezel, an innovative interface that allows the wearer to select and adjust the watch’s various functions.

The Sky-Dweller is fitted with Rolex’s Oysterflex strap, constructed with flexible metal blades that are overmoulded with high-performance elastomer. This construction provides the robustness of a metal bracelet while offering the comfort and flexibility associated with a rubber-style strap. The strap is secured by a folding Oysterclasp buckle equipped with Rolex’s Glidelock extension system, allowing for fine adjustment of the fit without the need for tools. The combination of the black Oysterflex strap and white gold case creates a distinctive balance between sporty versatility and precious-metal refinement.

Behind the screw-down case back is Rolex’s manufacture Perpetual self-winding Calibre 9002, engineered to power the Sky-Dweller’s sophisticated functions with precision and reliability. The movement incorporates Rolex’s Saros annual calendar system, which automatically distinguishes between 30- and 31-day months and requires correction only once a year, in addition to the dual-time-zone display and instantaneous date change. It operates at a frequency of 28,800 vibrations per hour (4 Hz) and provides approximately 72 hours of power reserve. The movement also features stop-seconds for precise time setting, while the screw-down crown with Twinlock double waterproofness system and screw-down case back help provide water resistance to 100 metres (330 feet). A scratch-resistant sapphire crystal with Cyclops lens protects the dial and enhances date readability.

The Rolex Sky-Dweller Ref. 336239 brings together precious-metal craftsmanship, advanced mechanical engineering, and practical travel complications in a distinctly contemporary package. From its fluted Ring Command bezel and sophisticated black dial to its comfortable Oysterflex strap and high-performance Calibre 9002, every element reflects Rolex’s focus on precision and functionality. 

 

Reference No. 336239