Rolex Cosmograph Daytona 16523 — Two-Tone 18kt Yellow Gold & Stainless Steel, White Dial, Zenith Movement, 40 mm

LTFL Background and Ownership History

Luxury Time For Less® meticulously researched a customer’s request for a Daytona, which led to the acquisition of this Rolex Daytona 16523 — a classic example of the famed Rolex series. In the end, the customer decided on an all-gold sport Rolex, so LTFL has the good fortune to offer this exquisite watch to its next owner.

A thorough and complete service has just been performed on the watch’s Zenith movement, along with a full exterior refurbishment. The next owner of this watch will wear it proudly, and will be the beneficiary of its likely increase in value.

The watch is sold with LTFL’s full one-year warranty. Reasonable offers and trades are always considered.

Condition and Presentation

The 40 mm stainless steel Oyster case is paired with an 18kt yellow gold tachymeter bezel, and an 18kt yellow gold crown bearing the Rolex insignia and matching 18kt yellow gold chronograph pushers. The white dial carries 18kt yellow gold sub-dials, 18kt yellow gold luminous hands, applied luminous stick markers and the red DAYTONA signature above the 6 o’clock register, all beneath a scratch-resistant sapphire crystal. The case is 12.4 mm thick with 20 mm lugs, water resistant to 100 meters / 330 feet, and closed with a solid stainless steel caseback.

Inside is the Zenith El Primero-based Rolex Caliber 4030, a Swiss-made automatic chronograph movement with approximately 52 hours of power reserve — certified as a chronometer, as “Superlative Chronometer Officially Certified” on the dial attests. Following its service, the watch was pressure-tested at 3.0 bar and passed, as the test printout in the photographs shows.

The watch is fitted with its two-tone 18kt yellow gold and stainless steel Rolex Oyster bracelet (Rolex ref. 78393 A) with its deployant “gold through” clasp. The clasp is made from both 18kt yellow gold and stainless steel to match the bracelet, rather than stainless steel alone — a detail two-tone Rolex buyers look for. The bracelet is currently sized for a 6 1/2-inch wrist, with additional Rolex links available. It is supplied with a Rolex box; papers and warranty card are not included.

Based in St. Louis, Missouri — serving collectors across the United States. Questions about this Daytona, or looking to source or sell one of your own? Call Rich directly at 314-210-4661.

Heritage and Brand Origins

Rolex was founded in London in 1905 by Hans Wilsdorf, who moved the company to Geneva, Switzerland a decade later. From the very beginning, Wilsdorf was obsessed with two things: precision and waterproofing. In 1926 Rolex introduced the Oyster, the world’s first commercially successful waterproof wristwatch case.

The Cosmograph Daytona arrived in 1963 as a chronograph built for racing drivers, and took its name from Daytona Beach, Florida — long the home of land-speed records and, later, the Daytona International Speedway. Its tachymeter bezel lets the wearer calculate average speed over a measured distance.

Reference 16523 belongs to one of the most significant chapters in the Daytona’s history. In 1988 Rolex gave the Daytona its first self-winding movement, choosing Zenith’s celebrated El Primero as the base. Rolex reworked it extensively — slowing its beat rate to 28,800 vibrations per hour and replacing many of its components — and named it Caliber 4030. The “Zenith Daytona,” as collectors know it, was produced until 2000, when Rolex replaced it with its own in-house Caliber 4130. That makes this generation a finite and highly collectible piece of Daytona history, and the 16523 its two-tone expression in 18kt yellow gold and steel.

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