Housed in a 40 mm 18 kt yellow gold Oyster case with a monobloc middle case, screw-down case back, and screw-down winding crown featuring the Twinlock double waterproofness system, reference 228348RBR-0045 is built to Rolex's exacting standards. The bezel is set with diamonds, while scratch-resistant sapphire crystal with a Cyclops lens over the date completes the case. Water resistance extends to 100 metres / 330 feet.
The green ombré dial with Roman numeral indicators gives this Day-Date 40 a distinctive character, shifting tone across the surface and lending the watch a commanding visual presence. The President bracelet in 18 kt yellow gold features semi-circular three-piece links and a concealed folding Crownclasp, delivering both refined aesthetics and a secure fit on the wrist.
Powering the watch is the perpetual, mechanical, self-winding Calibre 3255, a Manufacture Rolex movement certified as a Superlative Chronometer to a precision of -2/+2 seconds per day after casing. It offers approximately 70 hours of power reserve, bidirectional self-winding via a Perpetual rotor, a paramagnetic blue Parachrom hairspring, and high-performance Paraflex shock absorbers, alongside instantaneous day and date display with stop-seconds for precise time setting.
