"Amongst the rarest and most historically important early Rolex sports watches, this Submariner reference 6204 represents the very beginning of the Submariner lineage, when Rolex was experimenting with their diving watches. Produced in 1953 and retailed by the famed Venezuelan jeweler Serpico y Laino, the present watch features the coveted and exceptionally rare “Split Logo” text, in which the 'Submariner' and 'Perpetual' text is divided on each side of the center pinion.The watch further distinguishes itself with its gilt dial, “pencil” and "lollipop" hands, both being hallmarks of the earliest Submariners. Unlike later printed matte dials, gilt dials were produced through a galvanic process that left the text and minute track shimmering warmly, creating remarkable depth and richness. The elegant pencil hands, used before Rolex adopted the Mercedes handset, underscore the experimental and highly collectible nature of these first generation diving watches.Furthermore, the dial is signed Serpico y Laino at the lower half and is furthered with 'S&L ACERO' to the caseback. The present reference 6204 stands among the most desirable, rare, and historically significant early Rolex Submariners to survive today."
As mentioned earlier, this exceptionally rare Submariner boasts the second earliest known serial number. The earliest one belongs to the Submariner owned by Lord Admiral Mountbatten, who is pictured below (in the middle) in 1952 with Pierre Vanlaer (on the left) and Dimitri Rebikoff (on the right), the man who assisted Rolex in designing the Rolex Submariner.
Mountbatten and Rebikoff were also close to Henri Broussard, the head of the Club Alpin Sous Marin diving club in Cannes, France. Broussard founded the club in 1946, and it was there that many early Rolex Submariner tests took place. Admiral Mountbatten, at the time, was the Commander-in-Chief of the Allied Forces in the Mediterranean and was also an accomplished scuba diver.

Lord Mountbatten is pictured below in the Oval Office in Washington, D.C., with President Kennedy and the Chairman of the Joint Chiefs of Staff of the American military, Lyman Lemnitzer.
In the subsequent image, we observe Lord Mountbatten accompanied by his nephew, Prince Charles, who has since ascended to the throne as King Charles.
Below is a letter written by Rolex Marketing Director René-Paul Jeanneret to Admiral Mountbatten, which highlights Dimitri Rebikoff’s pivotal role in the development of the Rolex Submariner. As evident from the letter, Rolex provided Lord Mountbatten with an early Submariner for testing purposes. This explains why it possesses the earliest known serial number of 949,120, which is 77 digits earlier than the one being offered at auction at the beginning of this article.
Regrettably, the current whereabouts of Lord Mountbatten’s Submariner remain unknown to this day. Consequently, the Serpico Y Laino Submariner model featured at the beginning of this story, with a serial number of 949,197, is recognized as one of the earliest known Submariner models, as there are still known models that featured serial numbers in the range of 949,14X.
The Things That Dreams Are Made Of
In Jules Verne’s epic masterpiece, 20,000 Leagues Under the Sea, published in 1870, he prophetically unveiled humanity’s profound yearning to conquer the ocean’s mysterious abyss. The Rolex Submariner, born of that same indomitable spirit of exploration, transformed Verne’s visionary science fiction into enduring reality close to a century later—a timeless sentinel of the depths, where human ingenuity defies the deep sea, while touching the eternal unknown. Daring adventurers like Dimitri Rebikoff and Jacques-Yves Cousteau (pictured below wearing his Rolex Submariner tool watch) embodied that same spirit, turning Verne’s vision into reality.
"You will not regret the time spent on board my vessel. You are going to travel through a wonderland. Astonishment and stupefaction will be your normal state of mind... I am going to embark on a new underwater tour of the world... and you will be my study companion.”























































































