It is the same year of 1953, the first Rolex Explorer debuted in 1953, that Edmund Hillary and Tenzing Norgay completed the first successful ascent of Mt. Everest. The replica Rolex sponsored the expedition and provided Hillary with a watch to accompany him, a prototype of what would become the best fake Rolex Explorer.
After this outstanding feat, the Explorer became the preferred watch for committed climbers. Its appeal lies in its ability to withstand extreme temperatures and its simple, straightforward design.
The Rolex advertisements for the watch throughout the 1950s, which featured climbers using their Explorer during their ascent up a mountain or paying tribute to the Explorer for assisting them on their journey.
The first official watch inscribed with the Explorer name was the model, released in 1953. It was replaced by another model six years later, which had a more flattened caseback than the previous model.  
In 1971, Rolex made the first Explorer II, Ref. 1655. It was specifically designed with speleologists and polar explorers in mind. Because it’s difficult to distinguish between day and night in those places, the Explorer II features a fourth hand and a 24-hour bezel. This additional hand-typically orange-has become a trademark of the Explorer II.
The second edition of the Explorer II debuted in 1985. This variation is often referred to as a transitional model since another edition was launched just four years later.
There are many similar points between Explorer I and Explorer II. For example, both are self-winding, waterproof up to 330 feet, and only offered in stainless steel. However, they have a few important differences that make them appeal to different wearers as well.
Although it came first, The Explorer I has a more modern and minimalist aesthetic. It’s a classic Rolex with a more considerable satisfactory appearance and fittest size. The slim, simple, and clean lines of the Explorer make it a timeless watch for an expedition or a day at the office.
The Explorer II, on the other hand, has a sportier feature in appearance and feel, with a larger case, sapphire crystal, and caliber 3000 movements. Each of the details of the Explorer II would be bigger and bolder, from the lugs to the dial markers. The more rugged appearance of the Explorer II makes it a more durable and practical watch for daily wear, even if you’re not a passionate adventurer.
While Explorer I is also the perfect replica watch for the thrill-seeking climber, Explorer II is more ideal for the avid cave dweller. Otherwise, if neither type of adventure is your thing, both Explorer models are not only typically cool replica watches but also great watches for everyday wear.