Module No. 2178
2178-1
GENERAL GUIDE
· Press C to change from mode to mode.
· After you perform an operation in any mode, pressing C returns to the Timekeeping Mode.
· If you do not press any button for a few minutes while making settings in any mode (indicated when settings are flashing), the watch automatically clears the setting screen (settings stop
flashing) and returns to the normal display for the mode you are in.
· This watch returns to the Timekeeping Mode whenever you hold down the C button for one or two seconds. If you ever lose track of what mode you are in or what you should do next,
hold down C to return to normal timekeeping.
· In any mode press L to illuminate the display.
Stopwatch Mode
Alarm Mode
Dual Time Mode
Timekeeping Mode
Countdown Alarm Mode
Press C.
TIMEKEEPING MODE
To set the time and date
1. Hold down A while in the Timekeeping Mode until the
seconds digits flash on the display because they are
selected.
2. Press C to change the selection in the following se-
quence.
Seconds
Day
Minutes
12/24-Hour Format
Hour
Day of week
Month
3. While the seconds digits are selected (flashing), press D to reset the seconds to
00. If you press D 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.
· While the 12/24-hour format setting is selected, press D or B to toggle it between
12 and 24.
· While the day of the week is selected (flashing), press D to advance to the next
day or B to return to the previous day.
4. While any other digits (beside seconds) are selected (flashing), press D to in-
crease the number or B to decrease it.
· Except for when adjusting the seconds or setting the 12/24-hour format, holding
down a button changes the current selection at high speed.
· When the 12-hour format is selected, the indicator P appears on the display to
indicate "P.M." times. There is no indicator for "A.M." times.
· When the 24-hour format is selected, the indicator 24 appears on the display.
5. After you set the time and date, press A to return to the Timekeeping Mode.
ABOUT THE BACKLIGHT
· Press L to illuminate the display for about 2 seconds.
· The backlight of this watch employs an electro-luminescent (EL) light, which loses
its illuminating power after very long term use.
· Frequent use of the backlight shortens the battery life.
· The watch emits an audible sound whenever the display is illuminated. This does
not indicate malfunction of the watch.
· The illumination provided by the backlight may be hard to see when viewed under
direct sunlight.
· The backlight automatically turns off whenever an alarm sounds.
COUNTDOWN ALARM MODE
The countdown alarm can be set within a range of 1 sec-
ond to 24 hours. When the countdown reaches zero, an
alarm sounds for 10 seconds or until you press any but-
ton.
To set the countdown start time
1. Hold down A while in the Countdown Alarm Mode. The
hours digits flash on the display because they are
se-
lected.
2. Press C to change the selection in the following se-
quence.
Hour
Minutes
Seconds
3. Press D to increase the selected number or B to decrease it. Holding down
either button changes the selection at high speed.
· Press D and B at the same time to clear the starting time to 0:00' 00".
· To set the starting value of the countdown time to 24 hours, set 0:00' 00".
4. After you set the countdown start time, press A twice to return to the Countdown
Alarm Mode.
Minutes
Seconds
Day
Day of week
PM indicator
Hour
Month
Mode indicator
Hours
Seconds
Minutes
1/10
second
Auto repeat
on indicator
Progress beeper
on indicator
To use the countdown alarm
1. Press D while in the Countdown Alarm Mode to start the countdown alarm.
2. Press D again to stop the countdown alarm.
· You can resume countdown alarm operation by pressing D.
3. Stop the countdown alarm and then press B to reset the countdown time to its
starting value.
· When the end of the countdown is reached and auto repeat timing is off, the alarm
sounds for 10 seconds or until you stop the alarm by pressing any button. Count-
down timing stops and the countdown time is automatically reset to its starting
value after the alarm stops.
To switch auto repeat timing and the progress beeper on and off
1. Hold down A while in the Countdown Alarm Mode. The hour digits flash on the
display because they are
selected. Press A again to move the flashing to the
auto repeat ON/OFF setting.
2. Press D or B to toggle auto repeat on (
) and off.
3. Press C to move the flashing to the progress beeper ON/OFF setting.
4. Press D or B to toggle the progress beeper on (
) and off.
5. Press A to return to the Countdown Alarm Mode.
· When the end of the countdown is reached while auto repeat is on, the alarm sounds,
but the countdown restarts from the beginning without stopping. You can stop the
countdown by pressing D and manually reset to the start time by pressing B.
· If you set a starting time of 10 seconds or less and have Auto Repeat turned on, the
countdown alarm tone (which normally sounds for 10 seconds) sounds for only one
second.
· When the progress beeper is turned on, the watch beeps as the countdown time
passes the 10, 5, 4, 3, 2, and 1-minute marks, and the 50, 40, 30, 20, 10, 5, 4, 3, 2,
and 1-second marks.
STOPWATCH MODE
The Stopwatch Mode lets you measure elapsed time, split
times, and two finishes. The range of the stopwatch is 23
hour, 59 minutes, 59.99 seconds. You can also have an
alarm sound when a target time is reached. The Stop-
watch Mode also features an Auto-Start function.
(a) Elapsed time measurement
Start
Stop
Re-start
Stop
Clear
Start
Split
Split release
Stop
Clear
Start
Split
Stop
Split release
Clear
(b) Split time measurement
(c) Split time and 1st-2nd place times
First runner
finishes.
Second runner
finishes.
Record time of
first runner.
Record time of
second runner.
Mode indicator
1/100 second
Minutes
Seconds
Hours
Target time on indicator
About the Auto-Start function
With the Auto-Start function, the watch performs a 5-second countdown. When the
countdown reaches zero, stopwatch operation starts automatically. During the final
three seconds of the countdown, a beeper sounds with each second.
To turn the Auto-Start function on and off
While the display is showing all zeros in the Stopwatch Mode, press B to toggle it on
and off.
· The indicator AUTO-ST appears and 05 is shown in the upper display while Auto-
Start is turned on. The AUTO-ST indicator is not shown and the upper part of the
display shows the current time when Auto-Start is turned off.
· To stop the Auto-Start countdown and return to all zero display, press B.
· Pressing D while the Auto-Start countdown is in progress immediately starts the
stopwatch.
2178-2
Hour
Minutes
Seconds
About the Target Time function
With the Target Time function, an alarm sounds for ten seconds whenever the time
being kept by the stopwatch reaches a target time you have preset.
To set the Target Time and to turn it on and off
1. While the display is showing all zeros in the Stopwatch
Mode, hold down A, and the hour digit of the target
time starts to flash because it is
selected.
2. Press C to change the selection in the following sequence.
3. Press D to increase the selected number or B to de-
crease it. Holding down either button changes the se-
lection at high speed.
· Press D and B at the same time to clear the setting to
0:00' 00".
4. Press A to move the flashing to the target time ON/
OFF setting.
5. D or B to toggle the target time on and off.
6. Press A to return to the Stopwatch Mode.
Important!
The alarm will not sound if you do not turn on the target time.
· Press A, C or L to stop the alarm after it starts to sound.
ALARM MODE
When the Daily Alarm is switched on, the alarm sounds
for 20 seconds at the preset time each day. Press any
button to stop the alarm after it starts to sound. When the
Hourly Time Signal is on, the watch beeps every hour on
the hour.
To set the alarm time
1. Hold down A until the hour digits start to flash on the
display. The hour digits flash because they are
selected.
· This operation will switch the Daily Alarm on automati-
cally.
2. Press C to change the selection in the following se-
quence.
Hour
Minutes
3. Press D to increase the selected digits and B to decrease them. Holding down
either button changes the selection 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 (no indicator) or afternoon (P).
4. After you set the alarm time, press A to return to the Alarm Mode.
To turn the daily alarm and hourly time signal on and off
Press B while in the Alarm Mode to change the status of the daily alarm and hourly
time signal in the following sequence.
Hourly Time
Signal only
Daily Alarm
only
Both OFF
Both ON
· The alarm on indicator (
) and the Hourly Time Signal on indicator (
) are
shown on the display in all modes while these functions are turned on.
To test the alarm sound
Hold down B while in the Alarm Mode to sound the alarm.
· Note that pressing B also changes the alarm and the hourly time signal ON/OFF
settings.
DUAL TIME MODE
The Dual Time Mode lets you keep track of the time in
another time zone. You can also select the timekeeping
format (12-hour or 24-hour) separately from the Timekeep-
ing Mode.
To set the Dual Time
1. Hold down A while in the Dual Time Mode. The hour
digits flash on the display because they are
selected.
2. Press C to change the selection in the following se-
quence.
Hour
Minutes
3. Press D to increase the selected digits and B to de-
crease them. Holding down either button changes the
selection at high speed.
4. After you set the time, press A to return to the Dual Time Mode.
· In the Dual Time Mode, the seconds count is synchronized with the seconds count
of the Timekeeping Mode.
· In the Dual Time Mode, press B to toggle between the 12-hour and 24-hour for-
mats.
Hour
Alarm on
indicator
Hourly time
signal on
indicator
Mode indicator
Minutes
Current time
Hour
Mode indicator
Minutes
Current time
Mode indicator
Minutes
Seconds
Target time on
indicator
Hours