Rolex Datejust 31 Yellow Gold — Olive Green Diamond Dial | Fluted Bezel

Solid 18ct yellow gold Datejust 31 models occupy a distinctive niche in the collection: larger than the Lady-Datejust 28 yet more discreet than the full-size 36, they deliver a wearable mid-size case in Rolex's most prestigious metal. The olive green dial with six diamond hour markers projects a confident, jewellery-forward aesthetic that remains rooted in classical watchmaking rather than overt flamboyance.

Inside beats Calibre 2236, Rolex's dedicated mid-size movement introduced in 2015, notable for its Syloxi silicon hairspring — an in-house development that improves isochronism and resistance to magnetic fields without the need for a traditional Nivarox alloy spring. The movement provides approximately 55 hours of power reserve. The fluted bezel is machined from 18ct yellow gold and acts as a functional element, reinforcing the screw-down crown's watertight seal to 100 metres. A President bracelet in matching yellow gold completes the ensemble with its characteristic three-piece hollow link construction.

Solid gold Datejust 31 watches with coloured dials and diamond indices are produced in relatively limited quantities compared to Rolesor or steel variants. For buyers seeking a daily-wear dress watch in precious metal that avoids the more commonly seen full-size 36, this configuration offers a compelling combination of rarity, tactile quality, and enduring resale strength.