Rolex Datejust 36 mm 116234BRJ Yellow Gold/Diamonds Black

Few watches in horological history have achieved the cultural permanence of the Rolex Datejust. Introduced in 1945 as the world's first self-winding wristwatch to display the date in a magnified window on the dial, the Datejust has evolved across decades while retaining the proportional elegance that made it iconic. Reference 116234 — and its diamond-index variant designated 116234BRJ — belongs to the generation of Datejust 36 models that refined every surface detail, from the Oyster case architecture to the finishing of the integrated bracelet, into a cohesive object of quiet luxury.

The 36 mm Oyster case of the 116234BRJ is crafted from Rolex's proprietary Oystersteel, a 904L stainless steel alloy celebrated for its exceptional corrosion resistance and its ability to hold a brilliant polish over years of wear. Crowning the case is a fluted bezel machined from 18 ct white gold, its repeating V-shaped grooves catching light at every angle and providing the textural contrast that has defined the Datejust aesthetic since the 1950s. The combination of steel and white gold gives the watch an air of effortless formality without the heft or cost of an all-precious-metal case.

The dial is where the 116234BRJ announces itself most clearly. A rich black surface — authoritative and timeless — serves as the canvas for diamond hour markers that replace the standard applied indices. The diamonds elevate the dial from elegant to genuinely jeweled, introducing a play of brilliance that shifts with ambient light. The date aperture at three o'clock is fitted with Rolex's signature Cyclops lens, magnifying the date 2.5× for instant legibility — a practical detail that coexists naturally with the watch's dressy character.

Power comes from Rolex's automatic movement, a self-winding caliber that oscillates via a bidirectional rotor and requires nothing more than regular wear to remain perpetually wound. The movement is sealed within the screw-down Oyster case, which provides water resistance to 100 meters (330 feet) — more than sufficient for everyday encounters with water and a reassuring testament to the watch's robust engineering beneath its refined exterior.

On the wrist, the Jubilee bracelet — introduced alongside the very first Datejust — ties every element together. Its five-piece link construction is supple, the center links polished and the outer links brushed, creating a two-finish interplay that mirrors the case's mixed surfaces. The 36 mm diameter sits in that rare sweet spot that suits a wide range of wrist sizes and reads as neither overtly sporty nor exclusively formal, making the 116234BRJ one of the most genuinely wearable watches Rolex produces.

At Bizak & Co., we source Rolex references with discerning buyers in mind, and the Datejust 36 116234BRJ exemplifies exactly the kind of investment-grade timepiece we are proud to offer. Whether you are acquiring your first Rolex or adding a versatile, diamond-accented piece to a mature collection, this reference delivers enduring value, universal wearability, and the unimpeachable credibility of the Rolex name. Contact Bizak & Co. today to inquire about this reference, request additional images, or discuss purchase options — our team is ready to assist you.