The Rolex GMT-Master II 126713 GRNR, affectionately nicknamed the "Pepsi" or sometimes the "Root Beer" depending on the specific dial variation within the 126713 family, represents a pinnacle of horological achievement. This iconic timepiece, a testament to Rolex's unwavering commitment to precision, durability, and elegance, seamlessly blends practicality with sophisticated design. Its instantly recognizable two-tone Rolesor case, featuring a combination of Oystersteel and 18 ct yellow gold, and the striking bi-directional rotating bezel with its characteristic red and blue (Pepsi) or brown and black (Root Beer) ceramic insert, make it a highly sought-after piece among watch enthusiasts and collectors alike. This article will delve into the intricacies of the 126713 GRNR, exploring its features, functionality, and place within the broader Rolex GMT-Master II lineage. We will also touch upon related models and their market values, providing a comprehensive overview for prospective buyers.
Exceptional Legibility: A Hallmark of Rolex Professional Watches
Like all Rolex Professional watches, the GMT-Master II 126713 GRNR offers exceptional legibility in all circumstances, and especially in the dark, thanks to its Chromalight display. The broad hands and hour markers are generously sized and filled with luminescent material, ensuring effortless time-telling even in low-light conditions. The simple shapes of the hour markers – triangles, circles, and rectangles – are strategically placed to maximize readability, a crucial element for a watch designed for professional use. The clear contrast between the markers and the dial further enhances this legibility, a detail that speaks to Rolex's meticulous attention to detail. The date window, subtly integrated at 3 o'clock, provides a practical addition without compromising the watch's overall aesthetic balance.
The bi-directional rotating bezel, a defining feature of the GMT-Master II, allows for the tracking of a second time zone. The highly polished ceramic insert is incredibly scratch-resistant, maintaining its vibrant color over time. The precise graduation of the bezel ensures accurate setting and reading of the second time zone, crucial for pilots and travelers alike. The smooth, tactile feel of the bezel ensures effortless manipulation, even while wearing gloves. The combination of the bezel and the GMT hand, which completes a full rotation in 24 hours, makes monitoring multiple time zones an intuitive and effortless process.
The Caliber 3285: A Technological Marvel
Powering the 126713 GRNR is the in-house Rolex Caliber 3285, a self-winding mechanical movement representing the pinnacle of Rolex's watchmaking expertise. This movement boasts a significant power reserve of approximately 70 hours, providing ample timekeeping even if the watch is not worn for an extended period. The Caliber 3285 incorporates numerous innovations, including the Chronergy escapement, a highly efficient and reliable system resistant to magnetic fields. This escapement, combined with the optimized geometry of the gear train, contributes to the exceptional precision and stability of the movement. Furthermore, the Caliber 3285 features a Paraflex shock absorber, further enhancing its robustness and resilience against impacts. The meticulous finishing of the movement, visible through the caseback (on certain models, though not typically on the 126713 GRNR), is a testament to Rolex's dedication to craftsmanship.
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