Casio watches require only four buttons to set up, so you may have your watch ready in no time. Hold down the "Adjust" button until the numbers on your Casio watch begin to flash. The "adjust" button is located on the left side of your watch. Once, press the "Mode" button. You will now be in "Set Time." Press the "Menu" button once more to get into the main menu. To set the time, use the arrow keys to select "Time," then press the "Enter" key. A list of cities will appear along with their corresponding times. Use the arrow keys to select a city, then press "Enter" to set that city as your time. You can also input the time manually by typing it in using the "00:00" format. For example, if you want to set the time to 7:30 AM, you would enter "07:30". After setting your time, press the "OK" button to save it. To check the time, press the "Time" button again. If your time is correct, the city names will disappear and be replaced with a clock icon. If not, repeat these steps until the time is correct. If you own a Casio digital watch and use its date feature, press and hold the "Date" button until the numbers on your watch begin to flash. Then follow the same procedure as above to set the date.