The Rolex Explorer II reference 16570, produced from 1989 to 2011, holds a special place in the hearts of watch enthusiasts. Its rugged design, robust functionality, and enduring appeal have cemented its status as a modern classic. However, subtle yet significant changes occurred throughout its production run, leading to considerable variation among individual watches. Understanding these differences is crucial for collectors and prospective buyers alike, impacting both desirability and value. This article will delve into the key distinctions between various 16570 models, focusing on dial variations, lume changes, clasp evolution, and more, ultimately providing a comprehensive guide to navigating the world of the Rolex Explorer II 16570.
Dial Variations: A Timeline of Changes
The dial is arguably the most visually striking element distinguishing different 16570 iterations. These variations primarily revolve around the lume material used, the dial finish, and the text printed on the dial itself. Let's break down the key periods:
1989–1997: The Tritium Era
Early 16570 models, produced between 1989 and 1997, featured tritium lume. This self-luminescent material, while offering a warm, creamy glow, gradually degraded over time, leading to variations in lume intensity across different examples. These early watches are characterized by their glossy dials (both white and black), marked with "SWISS – T < 25." The "T < 25" indicates the tritium content, conforming to regulatory standards. These early examples often command a premium in the collector's market due to their historical significance and the unique character of the aged tritium lume.
1998–1999: The Transition to LumiNova
1998 marked a significant shift. Rolex transitioned from tritium to LumiNova, a newer, longer-lasting phosphorescent material. The dials of 16570s produced during this brief transitional period (1998-1999) exhibit a combination of features. While they utilize LumiNova, they still retain the "SWISS" marking without the "-T < 25" designation. Furthermore, this period saw the introduction of the flip-lock clasp, a significant improvement over the previous solid link clasp, enhancing comfort and security. Finding a 1998-1999 model represents a fascinating middle ground between the tritium and later Super-LumiNova eras.
1999–2011: The Super-LumiNova Era and the "SWISS MADE" Mark
From 1999 onwards, Rolex adopted Super-LumiNova, an even more advanced luminescent material. This marked the final significant change to the dial markings, with the text now reading "SWISS MADE." The dials continued to be offered in both matte white and glossy black, though the glossy black dials became increasingly rare towards the end of the production run. This period represents the bulk of 16570 production, leading to a wider variety of examples available on the secondary market. The Super-LumiNova also exhibits a slightly brighter and more modern glow compared to the previous lume materials.
Beyond the Dial: Other Key Differences
While dial variations are prominent, other subtle differences contribute to the diversity among 16570 models:
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