The Rolex Explorer II, a tool watch designed for exploration and adventure, boasts a rich history marked by subtle yet significant changes across its various references. Understanding these differences is crucial for collectors and enthusiasts alike, as they impact the watch's appearance, functionality, and ultimately, its value. This article will explore the key distinctions between various Rolex Explorer II references, focusing particularly on the transition from Tritium to Luminova lume and the resulting nuances within the 16570 reference. We will also delve into specific models, offering a comparative analysis through reviews and size comparisons.
The Significance of Lume: Tritium vs. Luminova
One of the most significant distinctions between various Explorer II generations lies in the type of luminescent material used on the hands and hour markers. Until 1998, Rolex employed Tritium, a radioactive isotope of hydrogen, for its luminescence. While offering a vibrant and long-lasting glow, Tritium's radioactive nature led to its eventual phasing out in favor of Luminova. This shift marks a crucial point in the Explorer II's history, creating a distinct separation between earlier and later models.
Watches produced before 1998, featuring Tritium lume, are highly sought after by collectors. The Tritium lume possesses a characteristic creamy, yellowish-green glow that fades gradually over time, acquiring a unique patina that many find aesthetically pleasing. This patina is not consistent across all watches, however, leading to a wide range of appearances even within the same reference. The subtle variations in lume aging contribute to the individuality and charm of these earlier models. The potential for this unique aging process is a key factor driving the collectible value of these Tritium-lumed Explorer IIs.
Conversely, watches produced from 1998 onwards utilize Luminova, a non-radioactive, safer alternative. Luminova offers a brighter, more intense glow initially, but it lacks the gradual aging and patina development associated with Tritium. While some collectors prefer the brighter, more modern look of Luminova, others find the lack of patina less appealing. The difference in lume is readily apparent upon comparison, with Tritium displaying a softer, warmer glow and Luminova showing a brighter, almost white glow in the dark.
The 16570: A Transitional Reference
The Rolex Explorer II reference 16570 represents a particularly interesting period in the watch's evolution, as it spans the transition from Tritium to Luminova. Produced between 1989 and 2001, the 16570 showcases both types of lume, making it a highly collectible and sought-after reference. Early examples of the 16570 feature Tritium lume, while later models transitioned to Luminova. This creates a fascinating middle ground within the 16570 reference, with watches exhibiting a mix of characteristics from both eras. Pinpointing the exact transition year within the 16570 production run is difficult, adding to the intrigue and the challenge for discerning collectors. Identifying the lume type is therefore crucial in assessing the value and age of a specific 16570.
Beyond Lume: Other Distinguishing Features
Beyond the lume, other subtle differences exist between various Explorer II references. These include changes in the case, dial, hands, and movement. For example, the case size and proportions have remained relatively consistent throughout the years, but slight variations do exist. Similarly, the dial design and font have undergone subtle revisions across different references. Understanding these minor differences requires a keen eye and a deep familiarity with the evolution of the Explorer II.
Detailed Reviews and Comparisons:
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