Housed in a round 36mm Yellow Rolesor case — Rolex's combination of Oystersteel and yellow gold — the Datejust 126283RBR-0011 features a monobloc middle case construction with a solid screw-down case back and screw-down winding crown utilizing the Twinlock double waterproofness system. A diamond-set bezel frames the watch, while a scratch-resistant sapphire crystal with a Cyclops lens over the date window sits above. Water resistance is rated to 100 metres / 330 feet.
The olive green dial is itself set with diamonds, and the Roman numeral markers at VI and IX are crafted in 18 kt gold, each set with 24 diamonds. Inside, Rolex's Calibre 3235 perpetual, mechanical, self-winding movement powers the watch, delivering a precision of -2/+2 seconds per day after casing, along with an approximately 70-hour power reserve. The movement features a paramagnetic blue Parachrom hairspring, high-performance Paraflex shock absorbers, and bidirectional self-winding via a Perpetual rotor. It is COSC certified.
The watch rides on a Yellow Rolesor Jubilee bracelet composed of five-piece links, secured by a folding Oysterclasp fitted with an Easylink 5 mm comfort extension link. Functions include center hour, minute, and seconds hands, an instantaneous date display with rapid setting, and stop-seconds for precise time setting.
