Housed in an 18 kt yellow gold Oyster case measuring 42 mm, the Sky-Dweller 336238-0001 features a monobloc middle case, a solid screw-down case back, and a screw-down Twinlock winding crown for waterproofness to 100 metres. The fluted, bidirectional rotatable Ring Command bezel serves as the interface for setting the watch's dual-time and calendar functions, while a scratch-resistant sapphire crystal with a Cyclops lens over the date completes the case.
The champagne-colour dial carries a Chromalight display with long-lasting blue luminescence for legibility in low light. Month is indicated through 12 apertures around the dial's circumference, while the instantaneous annual calendar appears at 3 o'clock alongside a 24-hour disc for tracking a second time zone — all driven by Calibre 9002, a COSC-certified perpetual self-winding movement with a precision of -2/+2 seconds per day and approximately 72 hours of power reserve. The oscillator features a paramagnetic blue Parachrom hairspring and high-performance Paraflex shock absorbers.
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 adjustment.
