Crafted in 18 kt yellow gold, the 40mm Oyster case of this Cosmograph Daytona features a monobloc middle case, screw-down case back, and a screw-down Triplock triple waterproofness winding crown, offering water resistance to 100 metres. The lugs are set with diamonds, and the bezel is likewise diamond-set, framing the watch in brilliance from every angle. Scratch-resistant sapphire crystal protects the dial beneath.
The golden dial is set with diamonds throughout, including 8 baguette-cut diamond hour markers alongside 3 diamond-set markers at 3, 6, and 9 o'clock. A Chromalight display provides long-lasting blue luminescence for legibility in low light. The Oyster bracelet, constructed from three-piece solid links in 18 kt yellow gold, secures with a folding Oysterlock safety clasp featuring an Easylink 5 mm comfort extension link.
Powering the watch is the Calibre 4131, a perpetual, mechanical, self-winding chronograph movement of Rolex manufacture. It operates with a precision of -2/+2 seconds per day after casing, carries a Superlative Chronometer certification (COSC plus Rolex certification after casing), and offers a power reserve of approximately 72 hours. The oscillator features a paramagnetic blue Parachrom hairspring and high-performance Paraflex shock absorbers, with bidirectional self-winding via a Perpetual rotor.
