Rolex Day-Date 36 36 mm 118348SDO Yellow Gold/Diamonds Silver

The Rolex Day-Date is arguably the most prestigious wristwatch ever created, introduced in 1956 as the first wristwatch to display both the day of the week spelled out in full and the date—a complication that earned it the enduring nickname "The President's Watch." Worn by heads of state, industry titans, and cultural icons across decades, the Day-Date has never been available in steel or two-tone; it is offered exclusively in precious metals, underscoring its position at the apex of Rolex's catalog. Reference 118348SDO represents this storied lineage in its most jeweled, celebratory form.

The 36mm Oyster case of the 118348SDO is crafted entirely in 18k yellow gold, a warm and lustrous precious metal that Rolex refines in-house at its own foundry to ensure the highest purity and consistency. The case follows the classic Oyster architecture—a monobloc middle case, screw-down caseback, and winding crown sealed with Rolex's Twinlock system—delivering water resistance to 100 meters (330 feet) and a robustness that belies the watch's formal elegance. Every curve and surface has been finished to the exacting standards that collectors have come to expect from Geneva's most meticulous manufacture.

The silver dial is the canvas on which this reference truly shines. Clean, luminous, and refined, the silver surface provides a striking contrast against the yellow gold hour markers and hands, ensuring optimal legibility at a glance. The Day-Date's signature twin apertures at 12 o'clock display the day of the week and, at 3 o'clock, the date, presented with Rolex's characteristic crispness. The result is a dial that communicates both time and status with effortless clarity.

Encircling the dial is a bezel set with brilliant-cut diamonds, each stone selected for its cut, color, and clarity before being individually set by Rolex's in-house gem-setting artisans. The diamonds catch and scatter light from every angle, transforming the watch into a piece of jewelry-grade craftsmanship that holds its own alongside the finest high-jewelry timepieces. This diamond bezel is the defining feature of the SDO designation and the primary reason this reference commands attention on the wrist. Completing the look is the classic Oyster bracelet in matching 18k yellow gold, offering a secure, comfortable fit with Rolex's folding Oysterclasp for easy adjustment.

Beneath the case, an automatic movement—Rolex's hallmark self-winding technology—keeps this Day-Date running with the reliability that has defined the brand for over a century. Rolex movements are COSC-certified chronometers and then further regulated in-house to Rolex's own Superlative Chronometer standard, meaning accuracy and long-term performance are integral to ownership of any reference in this family. The 118348SDO is therefore not merely a showpiece; it is a precision instrument wrapped in precious materials.

At Bizak & Co., we specialize in sourcing and presenting the finest pre-owned and hard-to-find luxury watches, and the Rolex Day-Date 36 reference 118348SDO is a cornerstone piece for any serious collection. Whether you are a first-time buyer searching for the ultimate yellow gold dress watch or a seasoned collector looking to add a diamond-set Day-Date to your rotation, our team is here to guide you. Reach out to Bizak & Co. through bizakandco.com to inquire about availability, request additional photographs, or discuss acquisition—your next heirloom-quality timepiece is waiting.