Model Reference: 228238-0007 Collection: Rolex Day-Date 40 Case Size: 40mm Case Material: Solid 18k Yellow Gold Bezel: Fluted bezel in 18k Yellow Gold Dial: Black dial with diagonal motif texture Hour Markers: Yellow gold applied index (stick) hour markers Movement: Rolex Calibre 3255, self-winding mechanical movement Functions: Day display at 12 o’clock (fully spelled out) Date display at 3 o’clock with Cyclops lens Hours, minutes, seconds Crystal: Scratch-resistant sapphire with anti-reflective coating Bracelet: President bracelet in 18k Yellow Gold (three-piece semi-circular links) Water Resistance: 100 meters / 330 feet Power Reserve: Approximately 70 hours Certification: Superlative Chronometer (COSC-certified + Rolex’s internal standards) Special Features: Unique black diagonal motif dial for a sophisticated modern look Signature fluted bezel for added Rolex elegance Day and date functionality with unparalleled precision and clarity