G-Shock 1683 User Manual

Module No.1683

1683-1

GENERAL GUIDE

· Press

CC

to change from mode to mode.

· In the Timekeeping Mode, Temperature Data Recall Mode and Alarm Mode, press DDto illuminate the display for about two seconds. In the Countdown Alarm Mode and Stopwatch Mode,
press EEto illuminate the display for about two seconds.

Alarm ModeStopwatch Mode

Press

BB

Press

CC

Timekeeping Mode

Temperature Data

Recall Mode

Countdown
Alarm Mode

Current Temperature

Display

Month-day display

TIMEKEEPING MODE

You can select display of either the current date (month
and day) or temperature in the Timekeeping Mode.
Press BBto toggle between the date and temperature
display.

To set the time and date

1.While the current date (not the temperature) is
displayed in the Timekeeping Mode, hold down

AA

until the seconds digits flash on the display.

2.Press CCto change the selection (flashing) in the
following sequence.

3.While the seconds setting is selected (flashing), press EEto reset it to 00. If you
press EEwhile the seconds setting is in the range of 30 to 59, the seconds are reset
to 00 and 1 is added to the minutes. If the seconds setting is in the range of 00 to
29, the minutes count is unchanged.

4.While any other setting (besides seconds) is selected (flashing), press EEto
increase it or BBto decrease it. While the 12/24-hour format setting is selected,
press EEto toggle it between 12 and 24.

· Except for the seconds or 12/24-hour setting, holding down a button changes the

setting at high speed.

5.After you set the time and date, press AAto return to the Timekeeping Mode.

· The day of the week is automatically set in accordance with the date.

· The date can be set within the range of January 1, 1995 to December 31, 2039.

· If you do not operate any button for a few minutes while a setting is flashing, the

flashing stops and the watch goes back to the Timekeeping Mode automatically.

Current Temperature Display

A built-in temperature sensor measures temperature and shows the measured value
on the display. The readout from the temperature sensor can also be switched
between Celsius (°C) and Fahrenheit (°F). The thermometer can be calibrated to
correct for errors.

Important

Temperature measurements are affected by your body temperature (while you are
wearing the watch), direct sunlight, and moisture. To achieve a more accurate
temperature measurement, remove the watch from your wrist, place it in a well
ventilated location out of direct sunlight, and wipe off all moisture from the case. It
takes approximately 20 to 30 minutes for the case of the watch to reach the actual
surrounding temperature.

Day

Minutes

PM

indicator

Day of
week

Hour

Seconds

Month

Seconds Hour Minutes

12/24-Hour
Format

Day YearMonth

Accurate temperature measurements cannot be achieved while you are wearing the
watch. The following graph illustrated affects of body temperature on actual
temperature.

Temperature

Temperature measured when watch is worn on wrist

40°C

30°C

20°C

10°C

0°C

10°C20°C30°C

40°C

Approximate
Differences caused by

individual body
temperture or clothing

About Temperature Measurement

· A temperature measurement operation is performed
whenever you switch from month-day display to
temperature display.

· Temperature measurements are performed and the
temperature value is updated every two minutes while
the current temperature is displayed.

· Pressing EEwhile the current temperature is displayed
executes a temperature measurement operation and
stores the result in memory along with the time of the
measurement.

· At the top of each hour, the current temperature is
measured and stored in memory along with the time of
the measurement.

* The display shows “– – . – °C (or °F)” if a measured value falls outside the range of

–20°C to 60°C (–4°F to 140°F). The normal display will return as soon as the
temperature returns within the allowable range.

· Memory can hold up to 100 temperature data entries, which are managed on a first­in, first-out basis. See “TEMPERATURE DATA RECALL MODE” of this manual for
details on how to recall memory data.

· The first data item is stored as data item 1, the second as data item 2, and so on up
to 100 data items.

· When a new data item is stored while there are already 100 data items (numbered 1
to 100) in memory, the new data item is “pushed” into memory from the top (on top of
item 100). This shifts all of the previous data items down one position (item 100
becomes item 99, 99 becomes 98, and so on), and item 1 is deleted.

Current

temperature

*

Temperature

graph

Switching between Celsius and Fahrenheit

1.Hold down AAwhile in the Current Temperature
Display and the current temperature digits flash.

2.Press CCto select either Celsius “°C” or Fahrenheit
“°F”.

3.After you select the Celsius or Fahrenheit, press AAto
return to the Temperature Display.

· 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 Current Temperature Display
automatically.

Calibrating the Temperature Measurement

The temperature sensor of this watch is calibrated at the factory before shipment and
further adjustment is normally not required. If noticeable error is found in the
temperature readings produced by the watch, you can adjust it to correct the error.

Important

Incorrectly calibrating the temperature measurement of this watch can result in
incorrect readings. Carefully read the following before doing anything.

· Compare the readings produced by the watch with those of another reliable,
accurate thermometer.

· If calibration is required, remove the watch from your wrist and wait for 20 or 30
minutes to give the temperature of the watch time to stabilize.

· Perform the temperature calibration before procedure as quickly as possible to avoid
the temperature of the watch being affected by your body temperature.

· You can also perform temperature calibration underwater, if the water temperature is
stable.

To calibrate the temperature

1.Hold down AAwhile in the Current Temperature
Display and the current temperature digits flash.

2.Each press of EEincrease the displayed temperature
by 0.1°C, and pressing the BBdecrease it by 0.1°C.

· If you have selected Fahrenheit as your unit of

measurement, the above operations change the
reading by 0.2°F.

· You can calibrate the temperature within a range of

–9.9°C to +9.9°C (–18.0°F to +18.0°F).

· Press BBand EEat the same time to reset the

temperature calibration to the factory setting.

3.After calibrating the temperature, press AAto return to the Current Temperature
Display.

· 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 Current Temperature Display
automatically.

ABOUT THE BACKLIGHT

About the Auto Light Switch Function

When the auto light switch function is turned on, the backlight automatically turns on
for two seconds under the conditions described below. Avoid wearing the watch on the
inside of your wrist. Doing so causes the auto light switch to operate when not
needed, which shortens battery life.

Flashes

Flashes

Moving the watch to a position that is parallel to the ground and then tilting it
towards you approximately 40 degrees causes the backlight to illuminate.

Parallel to
ground

40°

· The backlight may not illuminate if the face of the watch is more than 15 degrees off

parallel to the left or right. Make sure that the back of your hand is parallel to the
ground.

· Static electricity or magnetic force can interfere with proper operation of the auto

light switch function. If the auto backlight does not illuminate, try moving the watch
back to the starting position (parallel with the ground) and then tilt it back toward you
again. If this does not work, drop your arm all the way down so it hangs at your side,
and then bring it back up again.

· Under certain conditions the backlight may not light until about one second or less

after turn the face of the watch towards you. This does not necessarily indicate
malfunction of the backlight.

Parallel to ground More than 15 degrees

too high

More than 15 degrees
too low

1683-2

To switch the auto light switch function on and off

In the Timekeeping Mode, hold down EEfor one or two seconds to turn the auto light
switch function on and off.

· The auto light switch indicator is shown on the display in all modes while the auto
light switch function is on.

· In order to protect against running down the battery, the auto light switch function is
automatically turned off approximately three hours after you turn it on. Repeat the
above procedure to turn the auto light switch function back on if you want.

· Pressing DD(Timekeeping Mode, Temperature Data Recall Mode, Alarm Mode) or

EE

(Countdown Alarm Mode, Stopwatch Mode) illuminates the display, regardless of

the auto light switch's on/off setting.

Caution

·

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 backligfht shortens the battery life.

· The watch emits an audible sound whenever the display is illuminated. This is because the

EL light vibrates slightly when lit. It does not indicate malfunction of the watch.

Warning!

·

Never try to read your watch when mountain climbing or hiking in areas that are dark
or in areas with poor footing. Doing so is dangerous and can result in serious
personal injury.

· Never try to read your watch when running where there is the danger of accidents,

especially in locations where there might be vehicular or pedestrian traffic. Doing so
is dangerous and can result in serious personal injury.

· Never try to read your watch when riding on a bicycle or when operating a motorcycle

or any other motor vehicle. Doing so is dangerous and can result in a traffic accident
and serious personal injury.

· When you are wearing the watch, make sure that its auto backlight function is turned

off before riding on a bicycle or operating a motorcycle or any other motor vehicle.

Sudden and unintended operation of the auto backlight can create a distraction, which

can result in a traffic accident and serious personal injury.

COUNTDOWN ALARM MODE

The countdown alarm can be set within a range of 1
second to 24 hours. When the countdown reaches zero,
an alarm sounds for 10 seconds or until you press any
button.

To set the countdown start time

1.Hold down AAwhile in the Countdown Alarm Mode.
The hour digits flash on the display because they are
selected.

2.Press CCto change the selection in the following
sequence.

Auto light
switch indicator

Hold down

EE

ON

OFF

Mode
indicator

1/10

seconds

Hours

Seconds

Minutes

Hour SecondsMinutes

3.Press EEto increase the selected number or BBto decrease it. Holding down either
button changes the selection at high speed.

· 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 AAto return to the Countdown 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 Countdown Alarm Mode
automatically.

To use the countdown alarm

1.Press DDwhile in the Countdown Alarm Mode to start the countdown alarm.

2.Press DDagain to stop the countdown alarm.

· You can resume countdown alarm operation by pressing DD.

3.Stop the countdown alarm and then press BBto 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 AAwhile in the Countdown Alarm Mode. The hour digits flash on the

display because they are selected.

2.Press DDto toggle auto repeat on and off.

3.Press AAto 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 DDand manually reset to the start time by pressing BB.

· 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.

Flashes

OFF ON

Press

DD

Flashes

Auto repeat indicator

To turn the progress beeper on and off

Press BBwhile 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.

OFF ON

Press

BB

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.

Mode
indicator

1/100

seconds

Hours

Seconds

Minutes

Elapsed time measurement

DD DD DD DD BB

Start Stop Re-start Stop Clear

Split time measurement

DD BB BB DD BB

Start Split Split release Stop Clear

Split time and 1st-2nd place times

DD BB DD BB BB

Start Split Stop Split release Clear

First runner
finishes.

Second runner
finishes.
Record time of
first runner.

Record time of
second runner.

About the Auto-Start function

With the Auto-Start function, the watch performs a 5­second 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 AAto toggle it on and off.

· 5 is shown in the display while Auto-Start is turned on.
5 is not shown and 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 BB.

· Pressing DDwhile the Auto-Start countdown is in progress immediately start the

stopwatch.

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 EEto scroll forward through data, and BBto 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 AA. You cannot

delete individual data items.

Auto-Start Function
on indicator

Memory

number

Minutes

Hours

Temperature

Mode
indicator