With all CASIO Solar watches, so even with this, I was able to experience that the manufacturer's solar technology works extremely reliable: Normal daylight is sufficient to keep the battery at full strength and even some days of darkness (such as in a package expected in stock) can not alter the fact, thanks to the energy-saving function. The disabled by itself, the clock should be a long time does not move in a dark environment and "wakes up" on its own as soon as they are taken back into operation. Very convenient.
In combination with a radio receiver you hereby has the ideal clock: Extremely accurate, environmentally friendly and unbeatable at this price.
The design has added learned the silver-colored elements raise the clock significantly from the pure "cheap plastic style" from the band consists of hypoallergenic and very durable resin that makes the clock at the wrist very light, which I regard as another plus.
Technology fans get through the extra features of this clock at their expense: world time display for different cities, stopwatch, countdown timer, 5 different daily alarms (ideal for people who have many appointments or regularly need to take drugs), natural lighting of the display by pressing a button (!) and water resistant to 100 meters.
Conclusion: 5 stars