Reference 128348RBR-0070 presents the Day-Date 36 in a 36 mm Oyster case crafted from 18 kt yellow gold and set with diamonds. A screw-down case back and screw-down winding crown with Twinlock double waterproofness keep the watch waterproof to 100 metres, while a scratch-resistant sapphire crystal with Cyclops lens over the date completes the case architecture.
The white mother-of-pearl dial is itself set with diamonds, and 10 baguette-cut diamonds serve as hour markers, lending the face a richly jewelled character. The 18 kt yellow gold President bracelet, defined by its semi-circular three-piece links, fastens with a concealed folding Crownclasp for a seamless, refined look at the wrist.
Powering the watch is Rolex Calibre 3255, a perpetual mechanical self-winding movement with bidirectional winding via a Perpetual rotor and a power reserve of approximately 70 hours. A paramagnetic blue Parachrom hairspring and Paraflex shock absorbers contribute to its precision rating of -2/+2 seconds per day after casing, earning it Superlative Chronometer certification from both COSC and Rolex.
