The Rolex Datejust 31 reference 278384RBR-0025 is a 31mm luxury timepiece crafted from White Rolesor, which is a signature Rolex combination of Oystersteel and 18k white gold. This model features a dark grey dial with a sunray finish that creates subtle light reflections through masterful brushing techniques. The dial is adorned with polished Roman numeral hour markers and is protected by a scratch-resistant sapphire crystal featuring a Cyclops lens over the date window at 3 o’clock. A defining aesthetic element is the fixed bezel, which is meticulously set with brilliant-cut diamonds to enhance the watch’s brilliance.
Technically, the watch is powered by the high-performance caliber 2236, a self-winding mechanical movement manufactured entirely by Rolex. This movement incorporates a Syloxi hairspring in silicon and Paraflex shock absorbers to ensure superior resistance to shocks and temperature variations. It provides a power reserve of approximately 55 hours and maintains a precision of -2/+2 seconds per day after casing. The timepiece is equipped with a three-piece link Oyster bracelet made of durable Oystersteel, featuring a folding Oysterclasp and the Easylink comfort extension system that allows for a 5mm adjustment. Its waterproofness is rated to 100 meters, supported by a screw-down Twinlock double waterproofness system.
General reviews of the Datejust 31 collection emphasize its status as a timeless icon that balances elegance with robust daily wearability. Critics and enthusiasts often praise the refined proportions of the 31mm case, noting it as an ideal mid-size option that offers a more significant presence than traditional ladies’ sizes while remaining sophisticated. The integration of the diamond-set bezel is frequently highlighted for adding a “sparkling symphony” of light without compromising the watch’s classic silhouette. While the watch is celebrated for its unmatched precision and quality, some users have noted that the absence of a double anti-reflective coating on the crystal can occasionally lead to glare, though this is a common characteristic across many Rolex models.