The Rolex Datejust ref: 278285RBR-0021 features a 31mm case crafted from rose gold. This model, produced in 2019, is powered by the automatic winding Rolex caliber 2236. The watch showcases a grey dial and includes a date function. It is certified as a chronometer, ensuring precision in timekeeping. The combination of materials and design elements makes it a notable addition to any collection.