The Rolex GMT-Master II reference 16710, produced for an impressive 18 years (1988-2007), holds a special place in the hearts of collectors. Its enduring appeal stems not only from its iconic Pepsi or Coke bezel variations but also from the subtle, yet significant, changes in its dial throughout its production run. Unlike some Rolex models that receive clear-cut "Mark" designations (e.g., MK1, MK2), the 16710's dial evolution is a more nuanced affair, leading to much discussion and speculation among enthusiasts. This article delves into the intricacies of these dial variations, exploring their characteristics, the reasons for their lack of official nomenclature, and their impact on the watch's value. We'll also touch upon relevant aspects like serial numbers, production years, and pricing.
The Enigma of Unofficial "Marks": Why No MK1, MK2, etc.?
The question of why Rolex never officially categorized the 16710 dial variations into distinct "Marks" is a valid one. Unlike some of their other models, the changes to the 16710 dial were often gradual and incremental. There wasn't a single, dramatic overhaul that clearly separated one generation from another. Instead, the modifications were subtle, often impacting details like the font style of the text, the printing technique, or the presence or absence of certain markings. These changes happened over time, sometimes overlapping, making a clear-cut "Mark" system difficult to implement retrospectively. Furthermore, Rolex's official communication regarding these nuances has always been minimal, leaving room for interpretation and debate among collectors and enthusiasts.
Key Dial Variations of the Rolex 16710:
While there's no official "MK" system, several key dial variations are widely recognized and appreciated among collectors. These distinctions are largely based on the following characteristics:
* "T<25" Dial: Often considered an early variant, this dial features the text "SWISS" and "T<25" (indicating tritium lume) arranged in a specific manner. The "T<25" indicates the use of tritium, a radioactive substance used for lume before the switch to Superluminova. The font style, the spacing between the text, and the overall printing quality are key identifiers. Finding genuine examples in excellent condition is increasingly challenging, driving up their value.
* "Swiss Only" Dial: As the name suggests, this variation omits the "T<25" marking, showing only "SWISS" at the six o'clock position. This is generally considered a later variation than the "T<25" dials. Again, minor differences in font and printing technique can further refine the identification of specific sub-variations within this category.
* "SWISS MADE" Dial: Later 16710s transitioned to "SWISS MADE" at the six o'clock position, reflecting a shift in Rolex's manufacturing and marketing practices. This is a significant change, clearly differentiating it from the earlier "SWISS" only dials.
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