The Rolex Submariner. The name alone conjures images of rugged durability, unwavering precision, and a history steeped in maritime adventure. For decades, a key component contributing to the watch's iconic status was its luminous material: tritium. But the journey of tritium in Rolex watches, particularly within the Submariner line, has a definitive endpoint, marking a transition point for collectors and enthusiasts alike. This article delves into the final chapter of this era, focusing on the last Submariners to utilize this now-controversial yet historically significant luminescent substance.
In 1990, Rolex finally discontinued the venerable Submariner reference 5513. This marked the end of an era. The 5513, first introduced in 1962, enjoyed a remarkably long production run, a testament to its robust design and enduring appeal. This single reference witnessed significant evolution, including variations in dial markings, hands, and, crucially, luminous material. It also spawned the legendary MilSub, a military-specification variant known for its unique features and highly sought-after status among collectors. The 5513's long lifespan saw it transition from radium-based luminous paint in its early years to the eventually dominant tritium. The final years of production, however, saw the 5513 gradually phased out, making way for a new generation of Submariners. This transition coincided with the broader shift away from tritium in Rolex watches.
Rolex Watch Tritium: A Glowing History
For many years, tritium served as the primary luminous material in Rolex watches, including the Submariner. Tritium, a radioactive isotope of hydrogen, emits a soft, persistent glow without the need for external light sources. This made it ideal for dive watches, where legibility in low-light conditions is paramount. Rolex, renowned for its commitment to precision and reliability, carefully integrated tritium into its timepieces. The luminous material was typically applied to the hands and hour markers, providing excellent visibility even in the deepest ocean depths. The specific application methods and the resulting appearance varied slightly over the years, creating subtle differences that collectors keenly observe. These variations are part of the charm and the challenge of identifying and dating vintage Rolex watches. The glow, often described as a creamy or yellowish-green, is a hallmark of these vintage pieces and a key element of their desirability.
When Did Rolex Stop Using Tritium?
While the exact date isn't a sharply defined line, Rolex began phasing out tritium in its watches around the mid-to-late 1990s. The primary driver behind this change was safety concerns related to the radioactive nature of tritium. Although the levels of radioactivity in Rolex watches using tritium were considered relatively low and posed minimal risk, the increasing awareness of radiation hazards and stricter regulations prompted the brand to switch to a safer alternative. This transition wasn't abrupt; there was a period of overlap, with some models featuring tritium while others adopted the newer luminescent material. This overlap period is a key factor in understanding the final years of tritium Submariners.
Rolex Tritium Luminous: A Collector's Focus
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