How to change casio prg 40 watch battery?

we use watches for several reasons like to see time and date. But nowadays we use watches for several reasons most used for passion. But when the battery gets down we feel dangerous because we do not know how to replace the battery. Sometimes when trying to replace the battery we destroy our watch uncharily.To solve this kind of problem I make this video. if anyone sees this he can change the battery very easily and he can use his watch properly. To see this kind of useful video please subscribe to my channel and press the bell icon to get the next video. thanks for watching my video. #casio#replacebattery#changebattery