The Rolex GMT-Master II reference 16710, often affectionately nicknamed the "Fat Lady" due to its slightly larger case compared to its predecessor, the 16700, remains a highly sought-after and iconic timepiece. While the question asks about the 16570, which is a different model (featuring a different movement and generally a different aesthetic), there's a significant overlap in enthusiast interest and the information requested can largely be addressed by focusing on the more commonly discussed and readily available information regarding the 16710. The 16570, being a less common reference, has less readily available detailed information. This article will therefore focus on the 16710, providing a comprehensive overview that touches upon aspects relevant to the 16570 where applicable. The similarities between the two models are primarily in their general GMT function and the use of Oyster bracelets.
Understanding the Rolex GMT-Master Lineage: A Context for the 16710
Before delving into the specifics of the 16710, it's crucial to understand its place within the broader Rolex GMT-Master history. The GMT-Master's origins lie in the 1950s, born from a collaboration with Pan Am to cater to the needs of its pilots navigating across multiple time zones. The original models, like the 6542, were relatively simple, setting the stage for subsequent evolutions. The 16700, a predecessor to the 16710, refined the design and introduced features that would become hallmarks of the GMT-Master line. The 16710, produced from 1989 to 2000, built upon this foundation, incorporating improvements in both aesthetics and functionality.
The "Fat Lady": Distinguishing Features of the 16710
The Rolex GMT-Master II 16710 is easily identified by several key characteristics:
* Larger Case: As mentioned, its slightly larger case size compared to the 16700 earned it the nickname "Fat Lady." This subtle difference contributes to its more substantial feel on the wrist.
* Caliber 3185 Movement: This is a significant upgrade from the 16700's movement. The Caliber 3185 is a self-winding, mechanical movement known for its robustness and reliability. It boasts a quick-set date function and a longer power reserve. This is a key difference between the 16710 and the 16570, which would use a different movement entirely.
* Independent Hour Hand: The independently adjustable hour hand is a defining feature of the GMT-Master II. This allows the wearer to track a third time zone simultaneously with the local time and a second time zone displayed by the 24-hour bezel.
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