Rolex Datejust 31

The Rolex Datejust 31 (Ref. 178240) featuring a black dial with Roman numeral markers on an Oyster bracelet is a highly versatile, midsize luxury watch. This specific combination blends the traditionally formal aesthetic of classic Roman numerals with the sporty, understated feel of an all-steel smooth bezel and a three-link bracelet. The reference 178240 was introduced in the late 2000s and was eventually succeeded by the newer generation reference 278240 (which features the updated Calibre 2236 movement). Because the 178240 is no longer in production, it is exclusively available on the secondary market.