Reference 228396TBR-0039 presents the Day-Date 40 in a 40 mm Oyster case crafted from platinum, its bezel set with diamonds and its screw-down case back and Twinlock winding crown delivering water resistance to 100 metres. Scratch-resistant sapphire crystal protects the dial, with a Cyclops lens positioned over the date window for effortless legibility.
The ice blue dial features a Chromalight display with long-lasting blue luminescence, while the platinum President bracelet — composed of semi-circular three-piece links — fastens via a concealed folding Crownclasp. Together, the case and bracelet form a cohesive platinum composition that defines this reference within the Day-Date collection.
Inside beats the self-winding Calibre 3255, a perpetual mechanical movement manufactured by Rolex offering a precision rating of -2/+2 seconds per day after casing and certified as a Superlative Chronometer through both COSC and Rolex's own post-casing certification. A paramagnetic blue Parachrom hairspring, Paraflex shock absorbers, bidirectional winding via a Perpetual rotor, and instantaneous day and date displays with stop-seconds functionality complete the movement's specification.
