The Rolex Datejust 31 reference 278243-0002 is a mid-size luxury timepiece that combines a 31mm Oystersteel case with an 18k yellow gold domed bezel, a combination known as Yellow Rolesor. The watch features a crisp white lacquer dial adorned with yellow gold Roman numeral hour markers and matching hands. It is protected by a scratch-resistant sapphire crystal with a Cyclops lens over the date aperture. The case construction utilizes a screw-down case back and a Twinlock winding crown, ensuring water resistance up to 100 meters. This model is paired with a five-piece link Jubilee bracelet crafted from both steel and yellow gold, secured by a concealed folding Crownclasp for a seamless aesthetic.
The timepiece is powered by the Rolex caliber 2236, a self-winding mechanical movement that is a COSC-certified Superlative Chronometer. This movement incorporates a patented Syloxi hairspring in silicon for increased resistance to magnetic fields and temperature variations, alongside high-performance Paraflex shock absorbers. It provides a power reserve of approximately 55 hours and features center hour, minute, and seconds hands, along with an instantaneous date function with rapid setting and stop-seconds for precise time adjustment.
General reviews of the Datejust 31 often emphasize its versatility and classic proportions, noting that the 31mm size is a popular choice for those seeking a balance between the traditional lady’s size and larger modern models. Critics and enthusiasts frequently praise the comfort of the Jubilee bracelet and the legibility provided by the high-contrast white dial. While the design is considered timeless, some reviews mention that the high market demand can make specific configurations difficult to acquire through authorized dealers. Overall, it is regarded as a durable and reliable daily dress watch with strong long-term value retention.