None of the three are for sale and all have survived the immense pressure unscathed

In 2017, Rolex Replica supported the Under the Pole III expedition, which saw divers explore the ocean beneath the polar ice cap and off the coast of Antarctica. The brand also took part in the Deepsea Challenge in 2012 when filmmaker James Cameron became the first person to reach the replica watches deepest point of the sea since the 1960 expedition, also supported by Rolex. In 1960 and again in 2012, a Rolex concept watch specially developed for this ordeal was emblazoned on the outside of the submersible: the "Deepsea Challenge" is pressure-resistant to a depth of 12,000 meters. The developers of this deep diver were able to use the Ringlock system of the Deepsea model and thus achieved wearable dimensions of 51.4 mm in diameter and 28.5 mm in height. As a tribute to this expedition, the Deepsea model received a "D-Blue" gradient dial.

The Rolex Deepsea with "D-Blue" dial commemorates James Cameron's descent into the Mariana Trench ($12,900).In 2019, Omega followed Rolex's example and sent a wristwatch to the Mariana Trench. Omega's purpose-built Seamaster Planet Ocean Ultra Deep Professional reached a omega replica record depth of 10,925 meters on the outside of extreme adventurer Victor Lance Vescovo's "Limiting Factor" submersible. Replica Omega made only three examples of this watch, measuring 55mm in diameter and 28mm in height.

Omega also supports the Nekton Foundation, which is dedicated to protecting the oceans, and has created a special edition Seamaster Diver 300m with an image of the Nekton submersible on the case back. Here, both brands are working hard to outdo each other.