CASIO W57-1B
Manual de Usuario

Module No. 2117/2265/2275
GENERAL GUIDE
� � � � � Press B to change from mode to mode. After you perform an operation in any mode, pressing B returns to the Timekeeping Mode. Holding down C at any time illuminates the display. Frequent use of the backlight shortens the battery life. If you do not perform any operation for a few minutes in Alarm Mode and Time Setting Mode, the watch automatically reverts to the normal timekeeping screen. Timekeeping Mode Alarm Mode Stopwatch Mode Time Setting Mode

TIMEKEEPING MODE
PM indicator Day of week Day

STOPWATCH MODE
Split time indicator Mode indicator

� In the Timekeeping Mode, press A to switch between the 12-hour and 24-hour formats. � When using 12-hour format, a P appears on the display for �pm� times (noon to 11:59 pm). An �am� time (midnight to 11:59 am) is indicated when there is no P indicator on the display. 24-hour format is being used when the 24 indicator is on the display. � Day of the week is displayed as follows. SU: Sunday MO: Monday TU: Tuesday WE: Wednesday TH: Thursday FR: Friday SA: Saturday

The Stopwatch Mode lets you measure elapsed time, split times, and two finishes. The range of the stopwatch is 59 minutes, 59.99 seconds.

Hour Seconds Minutes

Minutes Seconds 1/100 second

(a) Elapsed time measurement

ALARM MODE
Alarm on indicator Hourly time signal on indicator Mode indicator

Start

Stop

Re-start

Stop

Clear

When the Daily Alarm is switched on, the alarm sounds for 20 seconds at the preset time each day. When the Hourly Time Signal is switched on, the watch beeps every hour on the hour.

(b) Split time measurement

To set the alarm time
1. Press C while in the Alarm Mode. The hour digits flash because they are selected. At this time the Daily Alarm is switched on automatically. 2. Press C to change the selection in the following sequence.
Hour
Hour Minutes

Start

Split

Split release

Stop

Clear

(c) Split time and 1st-2nd place times Start Split
First runner finishes.

Stop
Second runner finishes. Record time of first runner.

Split release
Record time of second runner.

Clear

Minutes Normal Alarm Mode (No digit flashes)

3. Press A to increase the selected digits. Holding down A changes the number at high speed. � The format (12-hour and 24-hour) of the alarm time matches the format you select for normal timekeeping. � When setting the alarm time using the 12-hour format, take care to set the time correctly as morning or afternoon (PM). 4. After you set the alarm time, use C to return to the Alarm Mode.

TIME SETTING MODE
PM indicator Day of week Day

To set the time and date

1. Use B to enter the Time Setting Mode. � The seconds digits flash because they are selected. 2. Press C to change the selection in the following sequence.

To stop the alarm

Press C to stop the alarm after it starts to sound.

Seconds Day of week

Hour Day

Minutes Month

To switch the Daily Alarm and Hourly Time Signal on and off
Press A while in the Alarm Mode to change the status of the Daily Alarm and Hourly Time Signal in the following sequence. [Alarm on Indicator/Hourly Time Signal on Indicator]
Hour Seconds Minutes

Both ON

Both OFF

Daily Alarm only

Hourly Time Signal only

To test the alarm
Hold down A while in the Alarm Mode to sound the alarm.

3. While the seconds digits are selected (flashing), press A to reset the seconds to �00�. If you press A while the seconds count is in the range of 30 to 59, the seconds are reset to �00� and 1 is added to the minutes. If the seconds count is in the range of 00 to 29, the minutes count is unchanged. 4. While any other digits (besides seconds) are selected (flashing), press A to increase the number. While the day of the week is selected, pressing A advances to the next day. Holding down A changes the current selection at high speed. 5. After you set the time and date, press B to return to the Timekeeping Mode. � If you do not operate any button for a few minutes while a selection is flashing, the flashing stops and the watch goes back to the Timekeeping Mode automatically.