Not only will you never need to set the Oceanus atomic watch, you will never need to change the battery either: Oceanus watches are not only atomic watches, they are atomic solar watches. With Oceanus' tough solar system, any light charges the internal battery, which fully charged, will continue to power the watch for several months. A power reserve feature preserves power when the watch is not in use. If you put the Oceanus atomic watch in darkness for several days, the watch goes into a dormant mode, but when you expose it to light once again, it wakes up and the hands spin around into place and synch up with the US atomic clock.

Some other interesting features incorporated by Casio into the Oceanus atomic watch are a dual analog/digital display with a 1/100 second stopwatch and 5 daily alarms on the Chronograph models. The 3-hand analog versions of the Oceanus atomic watch each have a daily alarm. Each Oceanus watch is water resistant to 100 meters and has a sapphire crystal. The dials are all illuminated by both luminescent material on the hands and markers as well as LED lights that are push-button activated. The LED lights can be set to automatically illuminate when the Oceanus is tilted toward your face in low-light conditions.

From the standpoint of aesthetics, the Oceanus atomic solar watch achieves a fine balance between classic style and high tech. One would not expect an atomic watch, or better yet, an atomic solar watch to have an appearance that is nothing short of tasteful and elegant. We've come to expect that any techy watch would be encased in black plastic, or look like something that belongs on the arm of a Star Trek character. Yet Oceanus has packaged their watch in fairly classic looking package using the finest materials including titanium, sapphire crystals, top grade leather, stainless steel, push button safety clasps and finely detailed dials. Subtle high tech details let anyone who sees an Oceanus know there is more to this watch than meets the eye.