The Rolex Explorer II 216570 Guide to Its Features and Performance

The Rolex Explorer II was designed as a complementary addition to the Explorer line, not a replacement for the classic time-only model first introduced in 1953. By incorporating a date display and a 24-hour hand, the Explorer II enables clear distinction between day and night hours – even in total darkness or deep underground environments.

Produced from 2011 to 2021, the Explorer II 216570 is a robust 42mm stainless steel sports watch equipped with both a date display and GMT functionality. It marked a significant evolution for the Explorer series when it debuted at Baselworld in 2011, representing a pivotal moment in the model’s history. For those considering a Rolex sports watch, here’s everything you need to know about the Explorer II 216570.

The Introduction of the 216570
To commemorate the 40th anniversary of the Explorer II collection in 2011, replica Rolex introduced the reference 216570, which featured a new, larger 42mm case – a notable change from the consistent 40mm diameter of previous models dating back to the mid-1980s. Although this reference brought a host of refinements, it preserved many of the key attributes that had defined the Explorer II line for over 25 years. Like its predecessors, the 216570 was only available in stainless steel with the choice of a black or white dial. The 12-hour hand remained independent of the 24-hour hand, allowing the watch to track two time zones simultaneously – a hallmark of the Explorer II’s dual time functionality.

Production of the 216570 lasted a decade, ending in 2021 to coincide with the collection’s 50th anniversary. It was replaced by the 226570, which featured an updated movement but kept a similar aesthetic. Over the years, the popularity of the 216570 surged, especially as availability dwindled toward the end of its production. Like other stainless steel Rolex sports models, demand quickly outpaced supply, leading to years-long waitlists before it was discontinued.

Key Features of the Explorer II 216570
Rolex’s design philosophy tends to lean towards incremental improvements rather than drastic overhauls, and the 216570 is no exception. A closer look at its details reveals several key updates that set it apart from previous iterations.

Case and Size
The original Explorer II (ref. 1655) had a 39mm case, but subsequent models maintained a 40mm diameter until the introduction of the 216570, which expanded to 42mm. This size increase brought a larger wrist presence and differentiated it from other clone Rolex models. The updated version also featured 21mm lugs, slightly wider than the previous 20mm size, to better balance the proportions of the larger case. Despite these changes, the 216570 maintained a water resistance of 100 meters (330 feet) through its sturdy Oyster case.

Distinctive Bezel
One of the most recognizable elements of the Explorer II is its fixed stainless steel bezel with a 24-hour scale, engraved in black. Unlike the rotating bezels on the GMT-Master series, the Explorer II’s bezel is stationary, emphasizing its focus on exploration rather than aviation. The watch’s 24-hour hand works with this fixed bezel to allow for the simultaneous tracking of two time zones.

Dial Options and Details
The 216570 continued the tradition of offering both black and white dials, with the white version commonly referred to as the “Polar Explorer.” Both dial variants featured “Explorer II” in bright orange text, matching the 24-hour hand. The hour markers were filled with Chromalight, a blue-glowing luminous material developed by Rolex. On the white dial, the marker surrounds were finished in black, while on the black dial, they were polished 18k white gold.

The standout feature of the 216570 was the revival of the bold orange arrow-shaped 24-hour hand, a nod to the design of the original Explorer II from the 1970s. Rolex rarely leans on vintage-inspired designs, but this element served as a subtle homage to the model’s heritage. On the Polar dial, the hands were finished in black to match the hour markers, while the hands on the black dial maintained a polished white gold appearance, with black bases for a “floating” effect.

Caliber 3187
Powering the Explorer II 216570 is Rolex’s in-house Caliber 3187. This movement, exclusive to the reference 216570, is an evolution of the Caliber 3186 found in its predecessor. It is a certified Swiss chronometer, boasting advanced replica Rolex technology, including a blue Parachrom hairspring and Paraflex shock absorbers for enhanced resistance to shocks and temperature fluctuations. The Caliber 3187 provides a 50-hour power reserve and offers precision of -2/+2 seconds per day, meeting Rolex’s stringent “Superlative Chronometer” standards.

Bracelet and Clasp Design
The Explorer II 216570 came with Rolex’s iconic Oyster bracelet, featuring solid links and a refined Oysterlock clasp. This updated bracelet, compared to its predecessor, included an Easylink extension system, allowing the wearer to adjust the length by 5mm without tools – a practical feature for an adventure-oriented watch.

The Market Value of the Explorer II 216570
With the discontinuation of the 216570 in 2021, this reference is now only available on the pre-owned market. Depending on factors like condition, age, and included accessories, prices for a 216570 can range from $8,000 to $20,000 as of 2025. The Polar dial variants often command a premium, reflecting the enduring preference for the white dial option.

When purchasing a pre-owned 216570, it’s essential to verify the watch’s authenticity, particularly the independently adjustable 12-hour hand, a signature feature of genuine Explorer II models. Given the prevalence of counterfeit Rolex watches, buying from a reputable source is critical.

A Resilient Icon in the Rolex Collection
Initially overshadowed by more famous models like the Submariner and Daytona, the Explorer II 216570 has experienced a surge in popularity as collectors recognize its unique appeal. Its rugged design, dual time zone functionality, and distinctive 24-hour bezel have cemented its status as a highly desirable watch. With its increasing scarcity, the 216570 is not only a reliable tool watch but also a solid investment, appealing to both adventurers and enthusiasts.

As demand for Rolex sports watches continues to rise, the Explorer II 216570’s value is likely to appreciate, making it a worthwhile addition to any collection. This model embodies Rolex’s dedication to precision, innovation, and timeless design – a true testament to the brand’s commitment to excellence.