Measuring 36mm across, the platinum Oyster case follows Rolex's monobloc middle-case construction, sealed by a screw-down case back and a screw-down Twinlock winding crown for waterproofness to 100 metres. Scratch-resistant sapphire crystal with a Cyclops lens over the date protects the dial, while the bezel is fully set with diamonds.
The ice blue dial is dressed with Roman numeral hour markers and displays the full day and date through instantaneous apertures — the combination that defines the Day-Date's character. Driving the watch is Rolex Calibre 3255, a perpetual mechanical self-winding movement with bidirectional winding via a Perpetual rotor, an approximately 70-hour power reserve, and a paramagnetic blue Parachrom hairspring paired with Paraflex shock absorbers. Precision is rated at -2/+2 seconds per day after casing, and the movement carries Superlative Chronometer certification reflecting both COSC and Rolex's own post-casing standards.
The platinum President bracelet — featuring semi-circular three-piece links and a concealed folding Crownclasp — completes reference 128396TBR-0019 as a cohesive expression of the Day-Date in its most storied metal.
