Crafted in 18kt yellow gold, the 42mm Oyster case of the Sky-Dweller 336938-0002 features a monobloc middle case, solid case back, and a screw-down winding crown protected by the Twinlock double waterproofness system. The bidirectional rotatable Rolex Ring Command bezel in fluted yellow gold serves a functional role in setting the watch's complications, while scratch-resistant sapphire crystal with a Cyclops lens over the date ensures clarity and protection. Water resistance extends to 100 metres / 330 feet.
The bright black dial offers a highly legible Chromalight display with long-lasting blue luminescence. Month is indicated through 12 apertures around the dial's circumference, while an instantaneous annual calendar sits at 3 o'clock alongside a 24-hour disc for a second time zone — a compelling combination of information delivered with visual discipline.
Powering the watch is the Calibre 9002, a COSC-certified perpetual mechanical self-winding movement with a precision rating of -2/+2 seconds per day after casing and approximately 72 hours of power reserve. A paramagnetic blue Parachrom hairspring and high-performance Paraflex shock absorbers contribute to the movement's resilience. The three-piece solid-link Oyster bracelet in 18kt yellow gold fastens with a folding Oysterclasp featuring an Easylink 5mm comfort extension link.
