Built around a 42 mm monobloc Oyster case in 18 kt yellow gold, the Sky-Dweller 336238-0002 features a fluted, bidirectional rotatable Rolex Ring Command bezel and a screw-down case back and winding crown secured by the Twinlock double waterproofness system. A scratch-resistant sapphire crystal with a Cyclops lens over the date completes the case, which is waterproof to 100 metres / 330 feet.
The bright black dial is equipped with a Chromalight display offering long-lasting blue luminescence for strong legibility. The month is indicated through 12 apertures arranged around the dial's circumference, while an instantaneous annual calendar sits at 3 o'clock alongside a 24-hour off-centre disc for the second time zone — all driven by the self-winding Calibre 9002 manufacture Rolex, which carries a precision rating of -2/+2 seconds per day after casing, a paramagnetic blue Parachrom hairspring, Paraflex shock absorbers, and approximately 72 hours of power reserve.
The watch rides on an Oysterflex bracelet, constructed from flexible metal blades overmoulded with high-performance elastomer and secured by a folding Oysterclasp with the Rolex Glidelock extension system for a precise, tool-free fit.
