The Rolex Submariner 5517, often referred to as the "MilSub," holds a unique position in the pantheon of Rolex sports watches. More than just a simple variation on the iconic Submariner, the 5517 represents a fascinating intersection of horological engineering, military specification, and enduring legend. This article will explore the intricacies of the Rolex 5517, delving into its history, variations, key features, and the factors that contribute to its immense collector appeal. The term "MilSub," a compound of "Military" and "Submariner," encompasses the four distinct reference numbers modified to meet the rigorous demands of various military forces, primarily the British Ministry of Defence.
Rolex 5517 Submariner: Understanding the Reference
The reference 5517 itself doesn't denote a specific model designation in the same way as other Rolex references. Instead, it acts as a collective identifier for a group of Submariners delivered to military organizations during the 1970s. These watches, based on the standard Submariner design, underwent modifications to meet specific military requirements, resulting in variations that continue to fascinate collectors today. The key characteristic uniting these watches under the 5517 umbrella is their shared military provenance and the subtle, yet significant, differences from their civilian counterparts.
These differences are not always immediately apparent to the untrained eye. This is precisely what makes authentication and accurate identification so crucial when dealing with these highly sought-after timepieces. A seasoned collector or expert can often spot tell-tale signs, such as specific dial markings, hand types, caseback engravings, and even subtle variations in the case itself. The nuances within the 5517 family contribute significantly to its allure and its position as a highly collectible and valuable watch.
Rolex 5517 MilSub: The British Connection
The most prominent association with the 5517 is its connection to the British Ministry of Defence (MoD). The British military's specifications for a robust and reliable dive watch led Rolex to produce a modified version of the Submariner. These modifications were subtle but crucial, designed to enhance durability and legibility under challenging underwater conditions.
The most easily recognizable feature of the MoD-specified 5517 MilSub is often the "T Swiss T" marking on the dial. This reflects the requirement for tritium luminous material on the hands and hour markers, contributing to superior night-time readability. The specific type of tritium used, its application, and its subsequent aging are all factors that influence the appearance and value of these watches. The lume plots themselves often exhibit unique characteristics, with varying degrees of patination and aging, adding to the individual character of each watch.
Another distinguishing feature is often the presence of a different type of crown than its civilian counterpart. The crown and its associated tube were designed for superior water resistance, a critical aspect for a military dive watch. The case itself might show subtle differences in its construction and finishing, reflecting the rigorous specifications demanded by the MoD. These details, often overlooked by the casual observer, are crucial elements in authenticating a genuine 5517 MilSub.
Rolex 5517: Variations and Nuances
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