The Rolex Datejust ref: 278243-0020 features a 31mm case crafted from a combination of yellow gold and stainless steel. This model, produced in 2019, is powered by the automatic winding Rolex caliber 2236. The watch showcases a silver dial and includes a date function. It is certified as a chronometer, ensuring precision in timekeeping. The Datejust series is known for its versatility and classic design, making it a staple in the Rolex lineup.