Rado Invents the World's Hardest Watch: the Rado V10K

The titanium case and bracelet keep it lightweight, and the contour of the case keeps it perched properly on top of my narrow wrist. Speaking of titanium, I've had trouble in the past getting titanium atomic watches to calibrate, possibly because it's more difficult for the signal to penetrate titanium than plastic, however the Oceanus 5 Motor has no difficulty receiving a signal from San Francisco. (Disclaimer: I can only vouch for signal reception in San Francisco -- as with all atomic watches, your mileage may very depending on where you live.)Although I've been very happy with the Oceanus 5 Motor, there are a couple of minor issues. First, it doesn't have any type of lighting system other than luminescent paint on the hands and hour markers. Titanium case and bracelet (also available with a black leather strap) . Synthetic sapphire crystal. A sapphire crystal (virtually scratch-proof) is not something you see everyday on a Casio, but on an Oceanus, it's standard. Water resistant up to 100 meters, or about 330 feet.On top of being a functional, sturdy, and a nice looking timepiece, the Oceanus 5 Motor is exceedingly comfortable. I've been wearing it for several days now, and it has a way of *** you forget it's there. Although I've found that the luminosity does last all night (this was easy to test because between kids, earthquakes, and general city cacophony, I'm awakened at all hours of the night), I wouldn't mind seeing the 5 Motor outfitted with the same LED illumination system as the Oceanus Chronograph. The 5 motor is also not the easiest watch to get the hang of.