The Rolex Explorer II, a robust and highly functional tool watch, holds a special place in the hearts of adventurers and watch enthusiasts alike. Its history is rich, its design iconic, and its specifications meticulously crafted for demanding environments. However, navigating the nuances of the different Explorer II models can be challenging, as Rolex maintains a famously tight-lipped approach to its archival details. This article aims to provide a comprehensive overview of the various Rolex Explorer II references, highlighting their key differences through detailed specifications, historical context, and accompanying imagery. We will explore the evolution of the watch, focusing on key distinctions between the 40mm and 42mm models, as well as examining specific variations like the Polar Explorer II and addressing common misconceptions regarding sizes like a purported 36mm version.
Rolex Explorer II Polar 40mm:
The "Polar" Explorer II, often considered the most iconic version, stands out due to its distinctive orange 24-hour hand and white dial. This design element, crucial for differentiating day from night in low-light conditions, became a signature feature of the model. While the 40mm case size is often associated with the Polar, it's important to note that this specific design has spanned various references within the 40mm and later 42mm lines.
*(Insert image of a Rolex Explorer II 16550 Polar here)*
The 16550 (circa 1989-2000) is a prime example of the 40mm Polar. This reference features a 3185 caliber automatic movement, known for its reliability and accuracy. Key specifications include:
* Case Diameter: 40mm
* Case Material: Stainless Steel
* Crystal: Sapphire
* Movement: Caliber 3185 (automatic)
* Water Resistance: 100m (330ft)
* Dial: White with orange 24-hour hand
* Bezel: Fixed, 24-hour graduated bezel (typically black)
Rolex Explorer II 42mm:
The transition to a 42mm case size marked a significant shift for the Explorer II. This increase in size wasn't simply an aesthetic change; it improved ergonomics and enhanced the watch's overall presence on the wrist. The larger case allowed for improved legibility, particularly of the 24-hour hand and the indices.
*(Insert image of a Rolex Explorer II 216570 here)*
The reference 216570 (circa 2011-2021) represents this generation. This reference features the Caliber 3187 movement, an updated version of the 3185 with improvements in performance and reliability. Specifications:
* Case Diameter: 42mm
* Case Material: Stainless Steel
* Crystal: Sapphire
* Movement: Caliber 3187 (automatic)
* Water Resistance: 100m (330ft)
* Dial: Black (primarily, though variations exist) with orange 24-hour hand
* Bezel: Fixed, 24-hour graduated bezel (typically black)
*(Insert image of a Rolex Explorer II 226570 here)*
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