Rolex Explorer II 16570: A 20-Year Review

The Explorer II reference 16570 represents a significant evolution within the Explorer II line, succeeding the 16550 and introducing updated aesthetics and technical refinements. It maintained the core utility of a robust tool watch designed for explorers and those who operate in environments where distinguishing day from night is challenging, thanks to its 24-hour hand and fixed bezel. This reference is often considered a modern classic, bridging the gap between earlier vintage models and contemporary Rolex offerings.

This reference features a 40mm stainless steel case, housing either the Caliber 3185 or later the Caliber 3186 automatic movement, providing a power reserve of approximately 48 hours. It is fitted with a sapphire crystal, enhancing durability and scratch resistance compared to earlier acrylic crystals. The watch offers a water resistance of 100 meters, suitable for everyday wear and light water activities, and is paired with a fixed stainless steel bezel engraved with 24-hour markers.

Appealing to collectors who value a blend of functionality and understated design, the 16570 is available with either a black or white dial, the latter often referred to as the "Polar" dial. Its production run saw the transition between different calibers, which can be a point of interest for enthusiasts. The reference is a practical choice for those seeking a GMT complication in a durable and recognizable form factor, without the rotating bezel found on other GMT models.