Rolex Day-Date 40 40 mm 228398TBRSSP Yellow Gold/Diamonds Silver

The Rolex Day-Date is, without question, one of the most recognizable and storied watches ever made. Introduced in 1956, it was the first wristwatch to display both the date and the full day of the week spelled out in full on the dial, a feat that cemented its place in horological history. From heads of state to captains of industry, the Day-Date has graced the wrists of the world's most influential people for nearly seven decades, earning its enduring nickname, the "President's watch." The 40mm iteration — launched to complement the original 36mm — brings the legend into the modern era with a slightly larger presence that suits contemporary tastes while preserving every element that made the original an icon.

Reference 228398TBRSSP represents one of the most opulent configurations available in the current Day-Date 40 lineup. The 40mm case is crafted entirely in 18k yellow gold, a warm and saturated tone that Rolex produces in-house to its own precise alloy specifications for exceptional luster and longevity. Yellow gold has always been the quintessential metal for the Day-Date, and on this reference it serves as the ideal canvas for the centerpiece feature: a bezel set entirely with baguette-cut diamonds. Baguette diamonds — rectangular stones set tightly side by side — demand extraordinary precision in both cutting and setting, and their linear geometry creates a continuous band of white light around the case that is genuinely breathtaking in person.

The dial of the 228398TBRSSP is finished in silver, a choice that demonstrates real restraint and confidence. Rather than competing with the drama of the diamond bezel, the silver dial provides a luminous, neutral backdrop that lets the day and date complications read with perfect clarity. Index hour markers punctuate the dial at each hour position, rendered in gold to harmonize with the case, while the characteristic Day-Date apertures at twelve and six o'clock display the day and date in Rolex's signature crisp typography. The overall effect is one of balanced luxury — nothing superfluous, everything intentional.

Powering the Day-Date 40 is an automatic movement, the hallmark of Rolex's commitment to precision and reliability. Rolex manufactures its movements entirely in-house at its Geneva facilities to Superlative Chronometer standards, meaning each caliber is certified by Rolex to a precision of −2/+2 seconds per day — a standard that surpasses the requirements of official COSC chronometer certification. The watch also offers 100 meters (330 feet) of water resistance, a practical specification that underscores Rolex's philosophy that even its most formal and bejeweled timepieces should be genuinely wearable instruments. The President bracelet — available exclusively on Day-Date models — completes the package with its characteristic three-piece semi-circular links, executed here in 18k yellow gold for a fluid, comfortable fit.

On the wrist, the Day-Date 40 in reference 228398TBRSSP commands attention in a way that few watches can. The 40mm diameter strikes the ideal balance between presence and wearability for a wide range of wrist sizes, while the polished surfaces of the yellow gold case and President bracelet interact with light in constantly shifting ways. The baguette diamond bezel transforms from a subtle glitter in low light to a blazing corona in direct sunlight, making this a watch that genuinely rewards observation. It is the kind of timepiece that becomes an heirloom — a watch bought not for a season but for a lifetime and beyond.

At Bizak & Co., we specialize in sourcing and presenting exceptional timepieces like the Rolex Day-Date 40 228398TBRSSP for discerning collectors and first-time luxury buyers alike. Please note that Bizak & Co. is not an authorized Rolex dealer; all watches are offered on the pre-owned or gray market. We invite you to contact our team directly for current availability, condition details, and pricing on this extraordinary reference. Whether you are adding to an established collection or making a singular statement purchase, our advisors are ready to guide you every step of the way.