The Rolex GMT-Master II "Batman," reference 116710BLNR, released in 2013, quickly became a highly sought-after timepiece. Its striking two-tone blue and black Cerachrom bezel, nicknamed "Batman" due to its resemblance to the superhero's colours, captivated watch enthusiasts worldwide. But beyond its instantly recognizable aesthetic lies a sophisticated and robust movement, the heart of this iconic watch: the Rolex Caliber 3186. This article will delve deep into the intricacies of the Caliber 3186, exploring its features, precision, and the engineering prowess that makes it a cornerstone of the Rolex Batman's enduring appeal. We’ll also examine the watch itself within the broader context of the Rolex Batman lineage, focusing on its bezel, model number, and its place within the GMT-Master II collection.
The Caliber 3186: A Masterpiece of Horological Engineering
Central to the 116710BLNR's performance and reliability is the Rolex Caliber 3186, a self-winding mechanical movement entirely developed and manufactured in-house by Rolex. This isn't simply an assembled movement; it's a testament to Rolex's vertically integrated manufacturing process, allowing for unparalleled control over quality and precision. Every component, from the meticulously crafted gears to the hairspring, is produced to Rolex's exacting standards, ensuring consistent performance and longevity.
The Caliber 3186 is a marvel of engineering, showcasing Rolex's commitment to innovation and refinement. Its architecture is robust and reliable, designed to withstand the rigors of daily wear and tear. This is achieved through a combination of factors, including:
* Paramagnetic blue Parachrom hairspring: This innovative hairspring is significantly less susceptible to magnetic fields than traditional hairsprings, ensuring greater accuracy and resistance to shocks and impacts. The blue colour is a visual indicator of its unique composition and enhanced properties.
* High-performance lubricants: Rolex employs specially formulated lubricants that minimize friction and wear within the movement, contributing to its long-term performance and reducing the need for frequent servicing.
* Optimized gearing: The intricate gearing system is meticulously engineered for optimal efficiency and power transmission, minimizing energy loss and maximizing the power reserve.
* Microstella regulating device: This highly precise regulating device ensures consistent timekeeping performance, contributing to the watch's chronometer certification.
* Self-winding mechanism: The Caliber 3186 features a highly efficient self-winding mechanism, ensuring that the watch is constantly powered by the wearer's movement. This eliminates the need for frequent manual winding.
COSC Certification and Power Reserve:
The Rolex Caliber 3186 is officially certified by the Contrôle Officiel Suisse des Chronomètres (COSC), the Swiss Official Chronometer Testing Institute. This rigorous testing process ensures that the movement meets stringent accuracy standards, guaranteeing exceptional timekeeping performance. Only movements that pass these demanding tests are awarded the prestigious COSC certification. While Rolex doesn't explicitly state the power reserve of the Caliber 3186 on their website for the 116710BLNR, independent testing and user experiences consistently point to a power reserve of approximately 48 hours. This means the watch will continue to run for two full days after it's removed from the wrist.
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