The Rolex world is a labyrinth of references, each with its own story, nuances, and dedicated following. While the reference number 16570 is well-known and frequently discussed among enthusiasts, its supposed predecessor, the 15570, is largely a phantom. No official Rolex documentation acknowledges a 15570 reference. This article, therefore, focuses on the widely recognized and highly sought-after Rolex Explorer II reference 16570, acknowledging the initial confusion stemming from the incorrect reference number provided in the prompt. We will delve into its characteristics, comparing its movement to others in the Rolex family, exploring its adjustment mechanisms, and providing a comprehensive movement review. The prompt's mention of a "third-generation 16570" produced between 1999 and 2005, featuring a "Swiss Made" dial and non-radioactive Super-LumiNova, perfectly describes a specific phase in this model's production run.
The Rolex Explorer II 16570: A Timeless Tool Watch
The Rolex Explorer II 16570, produced from 1989 to 2011, represents a significant chapter in the history of this iconic tool watch. Designed for explorers and adventurers, its robust construction, legible dial, and highly reliable movement make it a favorite among collectors and professionals alike. The watch's distinctive features include its 24-hour hand, crucial for differentiating day from night in low-light conditions, and its large luminous hour markers and hands, ensuring optimal readability in challenging environments. The 16570 witnessed several subtle yet significant changes throughout its production run. The early versions featured tritium lume, which gradually gave way to Super-LumiNova, a non-radioactive alternative offering improved brightness and longevity. The dial also saw refinements, with the transition from "Rolex Oyster Perpetual Explorer II" to simply "Explorer II" and variations in the font and placement of text. The prompt's reference to a "Swiss Made" dial and non-radioactive Super-LumiNova clearly points to the later production years, specifically between 1999 and 2005, a period often considered highly desirable by collectors. This period represents a refinement of the design and a crucial shift towards safer, non-radioactive luminescence.
Rolex Caliber 3186: The Heart of the 16570
The Rolex Explorer II 16570 is powered by the self-winding caliber 3186, a robust and reliable movement that showcases Rolex's commitment to precision and durability. This movement is a direct evolution of the earlier caliber 3185, boasting enhancements in terms of efficiency, shock resistance, and longevity. The 3186 is a COSC-certified chronometer, signifying its accuracy and adherence to stringent Swiss standards. Its key features include:
* Paramagnetic blue Parachrom hairspring: This patented hairspring is significantly more resistant to magnetic fields than traditional hairsprings, ensuring greater accuracy and stability in various environments.
* High-performance lubricants: Rolex utilizes specialized lubricants to minimize friction and enhance the movement's efficiency and longevity.
* Microstella regulating system: This system provides precise adjustment of the movement's rate, ensuring optimal timekeeping accuracy.
* Automatic winding mechanism: The self-winding rotor ensures the watch is constantly powered, eliminating the need for manual winding.
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