At 36 mm, the Oystersteel case follows Rolex's Oyster architecture — a monobloc middle case sealed by a screw-down case back and a screw-down Twinlock winding crown — delivering waterproofness to 100 metres. The bezel is set with diamonds, while a scratch-resistant sapphire crystal with a Cyclops lens over the date sits above the pink dial with index hour markers.
Power comes from the Calibre 3235, a perpetual mechanical self-winding movement manufactured by Rolex. Bidirectional winding via the Perpetual rotor provides approximately 70 hours of power reserve, and precision is rated at -2/+2 seconds per day after casing. The oscillator features a paramagnetic blue Parachrom hairspring paired with high-performance Paraflex shock absorbers, and the movement carries Superlative Chronometer certification — combining COSC testing with Rolex's own post-casing verification.
The Oystersteel Oyster bracelet is constructed from three-piece solid links and fastens with a folding Oysterclasp equipped with an Easylink 5 mm comfort extension link, allowing for easy on-wrist adjustments.
