Rolex Datejust black

The dial of the watch clearly displays "ROLEX" at the 12 o'clock position and "OYSTER PERPETUAL DATEJUST" below it, indicating both the brand and model of the timepiece. 
Features: The Datejust is a well-known Rolex model characterized by its date display at 3 o'clock, often magnified by a Cyclops lens, and its classic design available in various materials, including the two-tone (steel and gold) seen in the image.