The Rolex GMT-Master II "Bluesy," with its instantly recognizable blue and black bezel and striking two-tone Oyster bracelet, holds a special place in the hearts of watch enthusiasts. More than just a visually appealing timepiece, the Bluesy represents a blend of robust engineering, impeccable craftsmanship, and a rich history interwoven with exploration and aviation. This article delves into the heart of the Bluesy, exploring its various iterations, focusing on the calibres powering these iconic watches, and examining the details that make it a truly coveted piece.
The Heart of the Matter: Rolex Calibre 3235 and its Predecessors
The current generation of Rolex Bluesy (reference 126613LB) is powered by the exceptional Rolex calibre 3235. This in-house movement represents the pinnacle of Rolex's horological expertise, boasting a remarkable array of features designed for unparalleled performance and reliability. The 3235 is a self-winding mechanical movement with a power reserve of approximately 70 hours, significantly longer than its predecessors. This extended power reserve is a crucial advantage, allowing the watch to remain functional even if it's not worn for a couple of days. Furthermore, the 3235 incorporates the Chronergy escapement, a patented Rolex technology that combines the advantages of a traditional lever escapement with the superior efficiency of a silicon escape wheel. This results in greater precision, resistance to shocks, and improved energy efficiency.
The Paramagnetic blue Parachrom hairspring, another key component of the 3235, is ten times more resistant to magnetic fields than traditional hairsprings. This is a vital feature in today's world, where exposure to magnetic fields is increasingly common. The movement also benefits from a high-performance oscillator, ensuring exceptional timekeeping accuracy. Finally, the 3235 is equipped with a bidirectional self-winding rotor, optimized for efficiency and robustness. The meticulous finishing, visible through the sapphire crystal case back on some models, showcases Rolex's unwavering commitment to quality and attention to detail.
Previous models of the Bluesy, before the introduction of the 126613LB and its calibre 3235, utilized different movements. While specific calibre numbers for these earlier models are not consistently documented in the same way as the 3235, it's understood that they generally employed movements within the 3186 family, known for their reliability and accuracy. These earlier movements, while not possessing the advanced features of the 3235, still maintained the high standards of precision and robustness expected from a Rolex. The transition to the 3235 signifies a significant advancement in the Bluesy's technological capabilities, reflecting Rolex's ongoing commitment to innovation and improvement.
Rolex Bluesy: A Closer Look at the Icon
The Rolex Bluesy, officially the GMT-Master II, is a highly sought-after model within the Rolex collection. Its distinctive two-tone design, combining the elegance of 18k yellow gold with the robustness of stainless steel, is a defining characteristic. The iconic blue and black Cerachrom bezel insert, resistant to scratches and fading, is another key feature that contributes to the watch's enduring appeal. This bezel facilitates the reading of a second time zone, a crucial function for frequent travellers or those who need to keep track of multiple time zones simultaneously.
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