Model: Rolex Cosmograph Daytona 126515LN-0002 Case Material: 18k Everose gold (Rolex’s proprietary rose gold alloy) Case Size: 40mm diameter Bezel: Fixed black Cerachrom ceramic bezel with engraved tachymeter scale Dial: Sleek black dial with rose gold-rimmed chronograph subdials Hour Markers: Luminous 18k rose gold appliqué markers for enhanced legibility Movement: Rolex Caliber 4131 — self-winding chronograph movement with approx. 72-hour power reserve Functions: Hours, minutes, small seconds, central chronograph seconds, 30-minute and 12-hour counters, tachymeter Bracelet: Oysterflex strap (high-performance elastomer over flexible metal blades) Clasp: 18k Everose gold Oysterlock folding safety clasp with Easylink 5mm comfort extension Water Resistance: 100 meters / 330 feet Crystal: Scratch-resistant sapphire Certification: Superlative Chronometer (COSC + Rolex in-house testing) Special Features: Combines luxury and sportiness with Cerachrom bezel and innovative Oysterflex comfort