I hesitated before choosing this model within the range G-Shock. With several "nice" analog watches, I wanted to complete my collection with a watch look "affirmed" that combines solar charging technology and especially radio-controlled in order to use it to schedule calibration. Perfectly fulfilling these specifications, it has also some class display with its "reverse" and bracelet with folding clasp very convenient. This model itself apart from the rest of the range GW-M5610, albeit with a significantly higher rate but the benefits are at the rendezvous. Handy feature that would be good to mentioned in the description: the calibration schedule received signal strength indicator to put his watch to where the power of the latter is optimal. To conclude, it is a very beautiful watch "vintage" to the historical case from 1983 ... for both enthusiasts and trendy backpackers.