Housed in a 40 mm 18 kt white gold Oyster case featuring a monobloc middle case, solid case back, and screw-down winding crown with Twinlock double waterproofness, reference 228239-0060 is built to Rolex's exacting standards. A scratch-resistant sapphire crystal with Cyclops lens over the date sits above the slate dial, which offers a highly legible Chromalight display with long-lasting blue luminescence. The fixed bezel and waterproofness to 100 metres / 330 feet complete the case's specifications.
The 18 kt white gold President bracelet, distinguished by its semi-circular three-piece links and brushed and polished finish, secures via a concealed folding Crownclasp. Inside, the Calibre 3255 automatic movement — a Manufacture Rolex — winds bidirectionally via a Perpetual rotor and delivers a precision of -2/+2 seconds per day after casing, with a power reserve of approximately 70 hours. A paramagnetic blue Parachrom hairspring and high-performance Paraflex shock absorbers contribute to the movement's robustness.
Functions include centre hour, minute, and seconds hands alongside instantaneous day and date displays in apertures with secure rapid-setting and stop-seconds for exact time setting. This Day-Date 40 is offered as a complete set, inclusive of the original Rolex box and Rolex papers.
