The Rolex Explorer II, particularly the models often referred to as "GMT" variants due to their second time zone functionality, holds a unique place within the Rolex pantheon. While not explicitly labeled "GMT" by Rolex themselves (as the GMT-Master II holds that designation), many collectors and enthusiasts use the term to distinguish the Explorer II models featuring the fixed 24-hour bezel, a crucial element that allows for tracking a second time zone. This article will delve into the fascinating history, technical details, variations, and value of the Rolex Explorer II, with a particular focus on its capabilities as a dual-time watch. We'll explore everything from its vintage predecessors to the current market prices and explore the key features that make it such a sought-after timepiece.
A Legacy Forged in Exploration:
The Rolex Explorer II's story is intrinsically linked to exploration. Unlike the original Explorer, designed for mountaineering expeditions, the Explorer II was conceived with a specific need in mind: to provide a robust and reliable timekeeping instrument for explorers venturing into caves and other environments where distinguishing day from night could be crucial. The introduction of the 24-hour bezel was the key innovation that addressed this challenge. This bezel, fixed rather than rotatable, allows the wearer to track a second time zone, particularly useful for those traversing multiple time zones or working in environments with limited daylight. This functionality, though not explicitly marketed as a GMT function by Rolex, effectively serves the same purpose, adding a layer of versatility to the watch's already impressive capabilities.
The original Explorer II reference 1655, introduced in 1971, featured an orange 24-hour hand, a significant departure from the more traditional Explorer design. This orange hand, often referred to as the "GMT" hand, is a defining characteristic of the model and immediately distinguishes it from its predecessor. The 1655 housed the caliber 1570, a robust and reliable movement known for its accuracy and durability. This initial model, often highly sought after by collectors, laid the groundwork for the subsequent iterations of the Explorer II.
Evolution Through the Generations:
The Rolex Explorer II has undergone several significant revisions throughout its history. Following the reference 1655 came the reference 16570, introduced in 1985. This model featured a slightly revised case design and incorporated the improved caliber 3185, a movement that is still highly regarded for its accuracy and reliability. The reference 16570 is also known for its slightly larger size (39mm) compared to the 1655. The transition from acrylic crystal to sapphire crystal also occurred during this generation, offering superior scratch resistance.
The most recent iteration, the reference 216570, introduced in 2011, saw a significant increase in size, jumping to 42mm. This larger case size was a response to the growing demand for larger sports watches. Despite the size increase, the watch maintains its iconic design elements, including the distinctive orange 24-hour hand and the fixed 24-hour bezel. The reference 226570, released in 2021, represents the current production model, retaining the 42mm case size but incorporating subtle refinements.
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