The Rolex GMT-Master II reference 16710, affectionately known as the "Coke" (for its red and black bezel) or "Pepsi" (for its red and blue bezel), holds a special place in the hearts of watch enthusiasts. Its enduring appeal stems not only from its iconic design and versatile functionality but also from the robust and reliable movement ticking away within its case: the Caliber 3185 and its successor, the Caliber 3186. Understanding these calibers is key to appreciating the 16710's enduring legacy and its current value in the collector's market.
This article will delve into the intricacies of the calibers powering the Rolex 16710, exploring their features, differences, and impact on the watch's overall performance and desirability. We will also examine the various versions of the 16710, including the coveted "Coke" and "Pepsi" bezels, and analyze their current market prices and values.
The Caliber 3185: A Foundation of Excellence
Early production runs of the Rolex 16710 utilized the Caliber 3185, a self-winding mechanical movement that quickly established itself as a benchmark for reliability and precision. This movement is a testament to Rolex's commitment to horological excellence, incorporating several key features that contribute to its exceptional performance:
* Automatic Winding: The Caliber 3185 boasts a highly efficient self-winding system, ensuring consistent power reserve even with moderate wrist movement. This eliminates the need for manual winding, offering convenience and ease of use.
* High Precision: Rolex's rigorous testing and quality control standards ensure that the Caliber 3185 meets the brand's exacting specifications for accuracy and timekeeping. The movement's precision is a hallmark of Rolex's dedication to crafting exceptional timepieces.
* Shock Resistance: The movement is designed to withstand shocks and impacts, a crucial feature for a watch intended for daily wear. This robustness contributes to the 16710's reputation for durability and longevity.
* Robust Construction: The Caliber 3185 is built using high-quality materials and advanced manufacturing techniques, ensuring its resilience and longevity. This robust construction contributes to the watch's ability to withstand the rigors of daily use.
* Maintenance: While renowned for its reliability, like any mechanical movement, the Caliber 3185 requires periodic servicing to maintain optimal performance. Regular servicing by a qualified Rolex technician is recommended to ensure the movement's continued accuracy and longevity.
The Caliber 3186: Refinements and Enhancements
In the mid-2000s, Rolex introduced the Caliber 3186, an evolution of the Caliber 3185. While retaining the core features and strengths of its predecessor, the Caliber 3186 incorporated several refinements and enhancements:
* Paraflex Shock Absorbers: A notable improvement was the integration of Paraflex shock absorbers. These significantly enhanced the movement's resistance to shocks and impacts, further improving its durability and reliability.
* Improved Efficiency: While not drastically different, the Caliber 3186 boasted subtle improvements in efficiency, potentially leading to a slightly longer power reserve.
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