CASIO G-SHOCK's most popular speed design model, a solar-powered radio-controlled watch! I think the condition is beautiful (^^) It's a radio-controlled watch, so it's very easy because you don't need to set the time! I bought it used, so I don't know the details such as when it was purchased new or whether the battery has been replaced, but I was able to use it normally, so I think there are no problems! CASIO Casio G-SHOCK G-Shock Popular Casket Digital Speed model GW-5600J Tough Solar / Wave Ceptor Radio-controlled watch I bought it used, so I don't know the purchase date or the remaining battery life, but I was able to use it without any problems, so I think there are no problems. Since it is a radio-controlled watch, the time and calendar are automatically synchronized. I have checked it before listing, so you can use it immediately. I will include a copy of the downloaded instruction manual. 【Condition】 Although it is used, there are no noticeable large scratches or stains. The back cover is also in a beautiful condition. However, please understand that there is some wear and tear due to aging, as it is used. I think it can still be active, so please feel free to purchase it immediately (*^^*) #ToughSolar #SolarRadioWave #RadioSolar #SpeedModel #Digital #aGW5600 #Casio A G-SHOCK digital watch equipped with Tough Solar function. - Brand: CASIO - Model: G-SHOCK - Functions: Tough Solar, radio reception, 20-bar water resistance - Accessories: Instruction manual copy included - Design: Black, digital display Thank you for viewing.