CASIO LW201C-4A
Owner's Manual

MA0409-EA

Operation Guide 2898
About This Manual
(Light)

� Button operations are indicated using the letters shown in the illustration. � Each section of this manual provides you with the information you need to perform operations in each mode. Further details and technical information can be found in the �Reference� section.

General Guide
� Press B to change from mode to mode. � In any mode, press L to illuminate the display.
Timekeeping Mode Alarm Mode Stopwatch Mode Dual Time Mode

Press

.

Timekeeping
PM indicator Day of week Month � Day

Use the Timekeeping Mode to set and view the current time and date.

To turn the Daily Alarm and Hourly Time Signal on and off In the Alarm Mode, press C to cycle through the on and off settings as shown below.
Alarm On Indicator/Hourly Time Signal On Indicator

To set the time and date 1. In the Timekeeping Mode, hold down A until the seconds start to flash, which indicates the setting screen. 2. Press B to move the flashing in the sequence shown below to select other settings.
Seconds Day of week Hour Day Month Minutes Year

Hourly time signal on indicator Alarm on indicator

Both on

Both off

Daily alarm only

Hourly Time Signal only

Seconds Hour : Minutes

� The alarm on (ALM) indicator flashes while the alarm is sounding. � The alarm on (ALM) indicator and Hourly Time Signal on (SIG) indicator are displayed in all modes.

3. When the setting you want to change is flashing, press C to change it as described below.
To change this setting Seconds Hour, Minutes, Year, Month, Day, Day of week Perform this button operation Press C to reset to 00. Press C to increase the setting. Holding down C changes the setting at high speed.

To test the alarm In the Alarm Mode, hold down C to sound the alarm.

Stopwatch
Mode indicator 1/100 second

� Pressing C while the seconds are in the range of 30 to 59 resets them to 00 and adds 1 to the minutes. In the range of 00 to 29, the minutes are unchanged. 4. Press A to exit the setting screen. � The year can be set in the range of 2000 to 2099. � The watch�s built-in full automatic calendar makes allowances for different month lengths and leap years. Once you set the date, there should be no reason to change it except after you have the watch�s battery replaced.

Minutes

To toggle between 12-hour and 24-hour timekeeping In the Timekeeping Mode, press C to toggle between 12-hour timekeeping and
24-hour timekeeping. � With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for times in the range of noon to 11:59 p.m. and no indicator appears to the left of the hour digits for times in the range of midnight to 11:59 a.m. � With the 24-hour format, times are displayed in the range of 0:00 to 23:59. The 24 indicator is on the display while 24-hour format is selected. � The P and 24 indicators are not displayed with the Timekeeping Mode time on the Alarm Mode and Dual Time Mode screens. � The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is applied in all other modes.

Hours

Seconds

The stopwatch lets you measure elapsed time, split times, and two finishes. � The display range of the stopwatch is 23 hours, 59 minutes, 59.99 seconds. � The stopwatch continues to run, restarting from zero after it reaches its limit, until you stop it. � The stopwatch measurement operation continues even if you exit the Stopwatch Mode. � Exiting the Stopwatch Mode while a split time is frozen on the display clears the split time and returns to elapsed time measurement. � All of the operations in this section are performed in the Stopwatch Mode, which you enter by pressing B.

To measure times with the stopwatch
Elapsed time Start Split time Start Split (SPL displayed) Split release Stop Clear Stop Re-start Stop Clear

Alarm
Timekeeping Mode time (Hour : Minutes) Mode indicator

When the daily alarm is turned on, the alarm tone sounds when the alarm time is reached. You can also turn on an Hourly Time Signal that causes the watch to beep twice every hour on the hour. � All of the operations in this section are performed in the Alarm Mode, which you enter by pressing B.

Two Finishes Start Split
First runner finishes. Display time of first runner.

Stop
Second runner finishes.

Split release
Display time of second runner.

Clear

Alarm Operation
The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the watch is in.
Alarm time (Hour : Minutes)

Dual Time
The Dual Time Mode lets you keep track of time in a different time zone. � In the Dual Time Mode, the seconds count is synchronized with the seconds count of the Timekeeping Mode.
Timekeeping Mode time (Hour : Minutes) Mode indicator

To set an alarm time
1. In the Alarm Mode, hold down A until the hour setting starts to flash, which indicates the setting screen. � This operation automatically turns on the alarm. 2. Press B to move the flashing between the hour and minutes. 3. While a setting is flashing, use C to increase it. Holding down C changes the setting at high speed. � With the 12-hour format, set the time correctly as a.m. (no indicator) or p.m. (P indicator). 4. Press A to exit the setting screen.

Seconds

To set the Dual Time 1. Press B to enter the Dual Time Mode. 2. Hold down A until the hour setting starts to flash, which indicates the setting screen. 3. Press B to move the flashing between the hour and minutes settings. 4. Press C to increase the setting. Holding down C changes the setting at high speed. 5. Press A to exit the setting screen.

To stop the alarm tone after it starts to sound Press any button.

Hour : Minutes

1