A solar watch, plus radio-controlled, is a fine thing. Provided however, that there is no interference with solar technology. I run the clock now For 3 months in the switched power saving mode and is always full battery power is available. At night, on time at 3.02 clock, the time signal comes during the "sleep state", ie, the display is automatically switched off (only in full darkness).
The clock is totally reliable and gives me a lot of joy. I can only recommend buying. The price is also attractive, and the details, such as the bracelet are very mature.