G-Shock QW-1680 - Manual (Page 2)

- 3 -
STOPWATCH MODE
The stopwatch Mode lets you measure elapsed
time, split times, and two finishes. The range of the
stopwatch is 23 hours, 59 minutes, 59.99 seconds.
You can use the EL backlight at any time while the
stopwatch is operating.
OFF ON
Press
Mode indicator 1/100 seconds
Hours Seconds
Minutes
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
to toggle it on and off.
• 5 is shown in the upper display while Auto-Start is
turned on. 5 is not shown and the upper part of
the display shows all zeros when Auto-Start is
turned off.
• To stop the Auto-Start countdown and return to the all-zeros display, press .
• Pressing while the Auto-Start countdown is in progress immediately start the
stopwatch.
Elapsed time measurement
Start Stop Re-start Stop Clear
Split time measurement
Start Split Split release Stop Clear
Split time and 1st-2nd place times
Start
Split
Stop
Split release
Clear First runner
finishes. Second runner
finishes.
Record time of
first runner. Record time of
second runner.
ALARM MODE
You can set five independent alarms with the hour,
minutes, month and day. Use the Alarm Mode to turn
the alarm and the Hourly Time Signal on and off.
• When an alarm is turned on, an alarm tone
sounds for 20 seconds when the preset time
reached.
• When the Hourly Time Signal is turned on, the
watch beeps every hour on the hour.
Mode indicator
Alarm on
indicator
Minutes Hours
TEMPERATURE DATA RECALL MODE
Use this mode to recall temperature data that was
stored in memory. Memory can hold up to 100
temperature data entries, which are managed on a
first-in, first-out basis.
• When memory is full, the next measurement
causes the oldest entry to be deleted
automatically.
• Press to scroll forward through data, and to
scroll back. Recalling data starts with data item
100. You can then scroll back through the data
(99, 98, 97, and so on.)
• To delete all data in memory, hold down . You
cannot delete individual data items.
Memory
number
Minutes
Hourly time signal
on indicator
Hours
Temperature
Mode
indicator
To use the countdown alarm
1. Press
while in the Countdown Alarm Mode to start the countdown alarm.
2. Press again to stop the countdown alarm.
• You can resume countdown alarm operation by pressing .
3. Stop the countdown alarm and then press 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.
Countdown timing stops and the countdown time is automatically reset to its starting
value after the alarm stops.
To switch auto repeat timing on and off
1. Hold down
while in the Countdown Alarm Mode. The hour digits flash on the
display because they are selected.
2. Press to toggle auto repeat on and off.
3. Press 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
and manually reset to the start time by pressing .
• 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.
To turn the progress beeper on and off
Press
while in the Countdown Alarm Mode to toggle the progress beeper on and
off.
• 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.
Flashes OFF ON
Press
Flashes
Auto repeat indicator
2. After you select an alarm, hold down until the hour digits start to flash on the
display. The hour digits flash because they are selected. At this time the Alarm is
automatically switched on.
3. Press to change the selection in the following sequence.
4. Press to increase the number or to decrease it. Holding down either button
changes the current 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.
5. After you set the alarm time, press to return to the Alarm 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 Alarm Mode automatically.
To stop the alarm
• Press any button to stop the alarm after it starts to sound.
To switch an alarm and Hourly Time Signal on and off
1. In the Alarm Mode, press
to select an alarm or the Hourly Time Signal.
2. When the alarm or Hourly Time Signal you want to is selected, press to switch it
on and off.
• The Alarm On indicator and Hourly Time Signal On indicator is shown on the display
when you change to another mode.
To test the alarm
Hold down
while in the Alarm Mode to sound the alarm.
Hour Day Minutes Month
Alarm 1 Alarm 4
Alarm 5
Alarm 2 Alarm 3
Hourly Time Signal
Alarm on indicator Hourly time signal on indicator
Alarm types
The types of alarm you get depends on the information you set.
• To set a daily alarm
Set the hour and minutes for the alarm time. Set “-” for the month and “--” for the day. This type
of setting causes the alarm to sound everyday at the time you set.
• To set a date alarm
Set the month, day, hour and minutes for the alarm time. This type of setting causes the alarm
to sound at the specific time, on the specific date you set.
• To set a 1-month alarm
Set the month, hour and minutes for the alarm time. Set “--” for the day. This type of setting
causes the alarm to sound every day at the time you set, only during the month you set.
• To set a monthly alarm
Set the day, hour and minutes for the alarm time. Set “-” for the month. This type of setting
causes the alarm to sound every month at the time you set, on the day you set.
To set the alarm time
1. Press
while in the Alarm Mode to select Alarm 1 through Alarm 5.