Rolex Datejust 31 Yellow Rolesor — Fluted Bezel Black Index | Ref. 178273

Among the configurations available in the previous-generation Datejust 31 family, Ref. 178273 represents one of the cleaner, more accessible entries: Yellow Rolesor with a fluted bezel and a black index dial. The yellow gold fluted bezel is the defining decorative element, its vertical grooves catching light across the wrist in a pattern that Rolex first introduced in the 1940s and has maintained as a signature ever since. Yellow Rolesor places gold where the eye first falls — on the bezel and bracelet centre links — while Oystersteel provides the structural integrity of the middle case and outer bracelet links.

The Calibre 2235 powers the watch: a self-winding movement with a Parachrom blue hairspring offering improved resistance to magnetic fields and temperature variations, alongside Paraflex shock absorbers for mechanical resilience. The movement is certified as a Superlative Chronometer, maintaining precision to ±2 seconds per day. The black dial, fitted with applied index hour markers, offers high readability and a classical pairing with the yellow Rolesor metal scheme — black and yellow gold is a combination with deep roots in Rolex's design history.

Ref. 178273 is a straightforward proposition for buyers entering the 31 mm Datejust category: it avoids diamond embellishment entirely, relying instead on the fluted bezel's inherent texture and the Rolesor two-tone contrast for its visual character. This restraint makes it broadly wearable across contexts, from professional settings to evening occasions. On the pre-owned market it represents one of the more liquid 31 mm configurations, frequently sought by buyers who want Rolesor presence without the price premium of gem-set examples.