The Rolex Explorer II, specifically the reference 216570BKS0 in its 42mm black dial configuration, stands as a testament to Rolex's unwavering commitment to robust functionality and timeless design. This isn't simply a watch; it's a tool meticulously crafted for those who venture beyond the ordinary, a legacy solidified by its history and reaffirmed by its contemporary performance. This in-depth review will explore the nuances of the 216570BKS0, delving into its features, heritage, and place within the broader Rolex Explorer II and Rolex Explorer lineups.
Rolex 216570 Review: A Deep Dive into Functionality and Design
The 216570BKS0, released in 2011, represents a significant iteration in the Explorer II lineage. Its larger 42mm Oyster case, compared to its predecessors, provides increased wrist presence and improved readability, crucial features for the demanding environments this watch was designed to withstand. The robust Oyster case, crafted from Rolex's proprietary Oystersteel, offers exceptional durability and resistance to corrosion. The screw-down crown and Triplock triple waterproofness system ensure water resistance to a depth of 100 meters (330 feet), protecting the movement from the elements.
The dial is where the Explorer II's unique functionality truly shines. The instantly recognizable black matte dial is meticulously crafted for optimal legibility in low-light conditions. Large, luminous hour markers and hands, filled with Chromalight luminescent material, guarantee clear timekeeping even in complete darkness. Central to the Explorer II's design is the distinct orange 24-hour hand, a feature that sets it apart from the standard Explorer. This hand, independently adjustable, allows for the differentiation between AM and PM, a critical function for navigating in challenging conditions where the distinction between day and night can be crucial. The fixed bezel, also featuring 24-hour graduations, complements the 24-hour hand, providing a second, highly visual method for tracking time. This system is invaluable for cave exploration, polar expeditions, or any situation where maintaining a clear understanding of the time, especially in relation to a 24-hour cycle, is paramount.
The heart of the 216570BKS0 is the calibre 3187, a self-winding mechanical movement entirely developed and manufactured by Rolex. This movement boasts a power reserve of approximately 48 hours, ensuring reliable timekeeping even when the watch isn't worn. The 3187 movement is renowned for its precision, accuracy, and robustness, a testament to Rolex's dedication to horological excellence. Its Paramagnetic blue Parachrom hairspring is resistant to magnetic fields, further enhancing the movement's reliability and precision. The movement is also equipped with a high-performance Paraflex shock absorber, protecting it from impacts and vibrations.
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