The Rolex Datejust 31 reference 278273-0028 is a luxury mid-size timepiece featuring a 31mm case crafted from Yellow Rolesor, a signature combination of Oystersteel and 18k yellow gold. This model is distinguished by its white mother-of-pearl dial, which is set with 10 diamond hour markers in 18k gold settings, ensuring that each dial is unique due to the natural variations of the material. The watch is equipped with an 18k yellow gold fluted bezel and an integrated two-tone Jubilee bracelet, which features five-piece links and a concealed folding Crownclasp.
At its core, the watch is powered by the manufacture calibre 2236, a self-winding mechanical movement that incorporates a Syloxi hairspring in silicon and high-performance Paraflex shock absorbers. This movement provides a power reserve of approximately 55 hours and maintains a superlative chronometer precision of -2/+2 seconds per day. The Oyster case includes a screw-down winding crown with a Twinlock double waterproofness system and a scratch-resistant sapphire crystal with a Cyclops lens over the date window, contributing to a water resistance of 100 meters.
General reviews of the reference 278273 highlight its versatility as a “Goldilocks” size that offers more presence than the 28mm Lady-Datejust while remaining more delicate than the larger 36mm models. The combination of the mother-of-pearl dial and diamond markers is frequently praised for its elegance and classic aesthetic. While the Jubilee bracelet is noted for its comfort and supple feel, some reviewers point out that the high-polish yellow gold center links may be prone to visible hairline scratches over time with regular wear. Nevertheless, it remains a highly sought-after model for its blend of traditional Rolex design and modern mechanical reliability.