Urge and grasp the 'Alter ' button until the digits on your Casio watch dash. Urge the 'Genre ' button once to make the digits in the hour segment of your watch dash. Urge the 'Stop/start' button on your watch which will make the hour digit on your watches display change in 1 hour augmentations. Urge the 'Genre' button once again; this will make the minute digits on your watch dash. Urge the 'Stop/start' button to make the minute digits adjust. Press the 'Genre' button once more and urge the 'Alter' button once more. Your Casio watch is now set.