The Rolex Day-Date 40 reference 228398TBR-0001 is a prestigious 40mm luxury timepiece crafted from 18k yellow gold, an alloy produced in Rolex’s own foundry to ensure optimal luster and durability. This model is distinguished by its brilliant black sunray dial, which features 10 baguette-cut diamonds as hour markers. The case is further elevated by a fixed bezel set with approximately 50 trapezoid-cut baguette diamonds, totaling roughly 3.48 carats. It is paired with the iconic President bracelet, characterized by its semi-circular three-piece links and a concealed folding Crownclasp, offering a blend of high-technology construction and classic aesthetic refinement.
Mechanically, the watch is powered by the caliber 3255, a self-winding perpetual movement entirely developed and manufactured by Rolex. This movement features the Chronergy escapement and a blue Parachrom hairspring, providing a power reserve of approximately 70 hours and a precision of -2/+2 seconds per day. The signature complications include an instantaneous day-of-the-week display at 12 o’clock and a date window at 3 o’clock, both featuring a rapid-setting function and protected by a scratch-resistant sapphire crystal with a Cyclops magnifying lens. The Oyster case utilizes a Twinlock double waterproofness system to ensure water resistance up to 100 meters.
General reviews of the 228398TBR emphasize its status as a significant statement piece, often noted for its substantial “heft” and “immaculate” build quality. While it is highly regarded for its timeless design and the exclusivity of its gem-setting, some collectors categorize this specific diamond-heavy configuration as a “niche” model primarily aimed at those seeking high visibility and prestige. It is widely praised for its mechanical reliability and the legibility of its baguette-cut diamond indexes against the deep black dial, though market discussions often highlight that such precious metal and gem-set models are typically acquired for personal enjoyment and status rather than purely as high-growth investment vehicles.