The Rolex Lady-Datejust ref: 279383RBR-0001 features a combination of yellow gold and stainless steel. This model has a 28mm case and is powered by the automatic winding Rolex caliber 2236. It was produced in 2016 and includes a date function. The watch is certified as a chronometer, ensuring precision in timekeeping. The gold accents enhance its overall design, making it a notable piece in the Lady-Datejust collection.