The Casio G-Shock range of digital watches derives its name from the fact that the watches are shock resistant and are designed to never break, according to the company. The G-Shock strives to achieve indestructibility with a hollow-structured case, protective covering and cushioning material to protect sensitive parts. The G-shock watch is set to atomic time, which means the watch receives data from a nuclear clock in Fort Collins, Colorado, ensuring that the watch is always accurate. Setting the time on a G-shock is accomplished in a couple of easy steps.

Press the "mode" button on the bottom left hand side of the watch. Press it once to get to time mode. The time digits will begin to flash.

Press the top right hand button once. This will cause the second digits to flash. Now press the bottom right hand button until the correct second time is displayed. You can hold down the button to expedite the process. Once the desired time is reached, press the bottom left hand button and the digits will stop flashing. Press the bottom left hand button again to continue to the next digit.

Set the other digits in the following sequence: seconds, hour, minutes, year, month and date. If you accidentally cycle past the digit you would like to set, just keep pressing the bottom left hand button until you cycle around again. Follow the same procedures as outlined in Step 1 and 2 to set the hour, minutes, year, month and date.

Use the bottom right hand button to set the seconds to 00 if you do not wish to waste time cycling through the seconds. If the seconds were between 1 and 29, the second digits will simply change to 00. If the seconds were between 30 and 59, the seconds will change to 00 and one minute will be added to the time.

Change the time from a.m. to p.m. by pressing the button in the middle of the bottom of the watch when any of the digits are flashing.