The Rolex Datejust reference 278289RBR-0015 features a 31mm case crafted from white gold. This model, produced in 2020, is powered by the automatic winding Rolex caliber 2236. It includes a green dial and a date function, ensuring precise timekeeping. Additionally, this watch is certified as a chronometer, reflecting its accuracy and reliability. The design incorporates diamond-set hour markers, enhancing its visual appeal while maintaining a classic aesthetic.