The Rolex Explorer II, a watch designed for spelunkers and polar explorers who require reliable timekeeping in environments lacking natural light, has a rich and fascinating history. Among the various references of this iconic model, the 16550 and the 16570 stand out as particularly significant, representing a crucial transition period in the Explorer II's evolution. While both share a similar aesthetic at first glance, a closer examination reveals several key differences that distinguish these two references and make them highly sought after by collectors. This article delves deep into the nuances of the Rolex Explorer II 16550 and 16570, exploring their origins, dissecting their differentiating features, and providing a comprehensive guide to help you understand and appreciate these remarkable timepieces.
Rolex Explorer II 16550 vs 16570: A Tale of Two Generations
The Rolex Explorer II reference 16550 was introduced in 1985, replacing the original Explorer II reference 1655, affectionately nicknamed the "Freccione" due to its distinctive orange 24-hour hand. The 16550 marked a significant departure from its predecessor, adopting a more modern and refined design, moving closer to the aesthetic of other Rolex sports watches. This reference was produced for a relatively short period, ending its run around 1989, making it a relatively rare and desirable model.
The Rolex Explorer II reference 16570 then took over in 1989 and remained in production until 2011, enjoying a much longer production run. While the 16570 maintained the core design elements introduced with the 16550, it incorporated various improvements and refinements, making it a more robust and reliable timepiece. The extended production period of the 16570 resulted in a greater availability compared to the 16550, influencing their respective values and collectibility.
Difference between Exp II 16570 and 16550? A Detailed Comparison
To truly appreciate the differences between the 16550 and the 16570, we need to examine several key aspects of these watches, including their movements, dials, hands, bezels, and overall construction.
1. Movement:
* Rolex 16550: The 16550 is powered by the Rolex Caliber 3085. This movement was a significant upgrade over the Caliber 1575 used in the 1655, as it introduced several improvements, including a higher beat rate (28,800 vibrations per hour) for improved accuracy and a hacking seconds function, allowing the seconds hand to stop when the crown is pulled out for precise time setting. The Caliber 3085 also featured an independently adjustable 24-hour hand, a crucial function for the Explorer II, enabling the wearer to track a second time zone.differenze tra rolex 16550 e 16570
* Rolex 16570: The 16570 utilizes the Rolex Caliber 3185 (later upgraded to the Caliber 3186 towards the end of its production run). While the Caliber 3185 is based on the Caliber 3085, it features subtle improvements in its design and construction, enhancing its reliability and longevity. The later Caliber 3186, found in the very last production years of the 16570, is considered an even more refined and robust movement. Identifying the 3186 can be challenging without opening the caseback, but some collectors believe that examples with serial numbers in the "M" or "V" series are more likely to house this movement.
Key Difference: While both movements offer similar functionality, the Caliber 3185 (and especially the Caliber 3186) in the 16570 represents a refinement over the Caliber 3085 in the 16550, offering potentially greater reliability and longevity.
2. Dial: