Measuring 36 mm across, the round Oystersteel and Everose gold case is built around a monobloc middle case with a solid screw-down case back and a screw-down Twinlock winding crown, delivering waterproofness to 100 metres / 330 feet. A scratch-resistant sapphire crystal with a Cyclops lens over the date sits above the black dial, which features diamond hour markers set in 18 kt gold settings — a detail referenced in Rolex's own designation for this reference.
Power comes from Rolex Calibre 3235, a perpetual mechanical self-winding movement certified as a Superlative Chronometer to both COSC standards and Rolex's additional post-casing certification, achieving a precision of -2/+2 seconds per day. The oscillator employs a paramagnetic blue Parachrom hairspring and high-performance Paraflex shock absorbers, while bidirectional winding is handled by the Perpetual rotor. Functions include center hour, minute, and seconds hands, instantaneous date with rapid setting, and stop-seconds for precise time adjustment.
The Oyster bracelet is composed of three-piece solid links in Everose Rolesor — the same combination of Oystersteel and Everose gold as the case — and closes with a folding Oysterclasp equipped with an Easylink 5 mm comfort extension link for on-the-fly sizing adjustments.
