The Rolex Lady-Datejust ref: 279175-0021 features a 28mm case crafted from rose gold. This model, produced in 2016, is powered by the automatic winding Rolex caliber 2236. The watch displays a white 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.