The Rolex Day-Date ref: 228348RBR-0005 features a 40mm case crafted from yellow gold. This model, produced in 2015, is powered by the automatic winding Rolex caliber 3255. The watch displays a silver dial and includes a date function. It is certified as a chronometer, ensuring precision in timekeeping. The combination of materials and engineering reflects Rolex's commitment to quality and performance.