Pre-owned Rolex Datejust ref. 278274 with original documents and box. This Rolex Datejust 31 mm Ref. 278274 with a black dial with diamonds is a luxury watch from the Rolex Datejust collection. It has a 31 mm Oystersteel case with an 18-karat white-gold fluted bezel, giving it the classic two-material Rolex look known as Rolesor. The dial is typically black with a sunray finish, which reflects light in a subtle radial pattern. Instead of standard hour markers, it features ten diamonds set in 18-karat gold mounts, adding a refined jewelry element while still keeping the watch elegant and understated. Inside the watch is the automatic Rolex Calibre 2236 movement, designed and manufactured by Rolex. It offers high precision and the brand’s Superlative Chronometer certification. The watch also includes a sapphire crystal with the Cyclops magnifier over the date and is water-resistant to 100 meters. Overall, the 278274 black diamond model is known for combining everyday durability with a classic, elegant appearance often associated with Rolex’s iconic Datejust line. Brand: Rolex Model: Datejust 31 Reference: 278274 Case Material: Steel/White Gold Movement: Automatic Dimension: 31 mm Dial: Black with Diamonds Bezel: White Gold Crystal: Sapphire Bracelet Type: Jubilee Bracelet Material: Steel/White Gold Wrist Diameter: Up to 17 cm Original Box: Yes Original Papers: Yes Condition: Very Good