The Rolex GMT-Master II Pepsi, with its instantly recognizable blue and red Cerachrom bezel, is a grail watch for many collectors. However, even within this highly sought-after model, subtle yet significant differences exist, leading to the informal classification of "Mk1," "Mk2," and sometimes "Mk3" (and beyond) variations. Understanding these distinctions is crucial for discerning buyers navigating the complex world of pre-owned and new Rolex GMT-Master IIs. This article will delve deep into the comparison of the Mk1 and Mk2 Pepsi GMT-Master IIs, examining their key features, price differences, and the overall evolution of this iconic timepiece.
Understanding the "Mk" Designation:
The "Mk" (short for "Mark") designation isn't an official Rolex classification. Instead, it's a system used by collectors and enthusiasts to differentiate between subtle variations within a particular Rolex model over time. These variations might involve changes in movement, case material, bezel material, bracelet type, or even minor dial details. While Rolex rarely explicitly announces these changes, careful observation reveals distinct features that allow for this unofficial categorization. For the GMT-Master II Pepsi, the primary differences separating the Mk1 and Mk2 lie in the movement and, to a lesser extent, the bracelet.
Rolex GMT-Master II Pepsi Mk1 (Ref. 16710, 116710BLRO):
The Mk1 Pepsi generally refers to the earlier versions of the GMT-Master II with the Pepsi bezel. This includes the reference 16710 (produced until approximately 2007) and the initial iterations of the reference 116710BLRO (produced from its launch until the introduction of the Mk2). Key characteristics of the Mk1 include:
* Movement: The Mk1 16710 featured the Calibre 3186, a robust and reliable movement known for its accuracy and longevity. The 116710BLRO utilized the Calibre 3186 initially as well. This movement is a workhorse, providing excellent timekeeping performance.
* Bezel: The iconic Pepsi bezel, with its alternating blue and red ceramic inserts, is a defining feature. While the material itself remained consistent, minor variations in the shade and saturation of the colors might be observed between early and later Mk1 examples.
* Bracelet: The Mk1 typically came fitted with the Oyster bracelet, a classic Rolex bracelet known for its durability and comfort. Some variations may have included the Jubilee bracelet, depending on the specific reference and year of production.
* Case: The case size remained relatively consistent throughout the Mk1 production run, generally measuring in line with the overall dimensions of the GMT-Master II line.
* Dial: The dial design is relatively consistent across Mk1 examples, with minor variations in lume and printing techniques possible between different production years.
Rolex GMT-Master II Pepsi Mk2 (Ref. 116710BLRO):
The Mk2 Pepsi denotes a significant update to the GMT-Master II. Although sharing the same reference number (116710BLRO) as the later Mk1 examples, it's distinguishable by key changes:
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