Casio QW-1625 Quick Start Manual Download Page 2

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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 

while in the Thermometer Mode

and the current temperature digits flash.

2. Each press of 

increase the displayed

temperature by 0.1˚C, and pressing the 
decrease 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 

and 

at the same time to reset the

temperature calibration to the factory setting.

3. After calibrating the temperature, press 

to

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 Thermometer Mode
automatically.

Flashes

TREKKING COUNTER MODE

The Trekking Counter counts how many steps you
take and elapsed time while walking. After you input
the length of your stride, it also automatically
calculates and displays the distance you have
covered.

Important!

•The Trekking Counter cannot count the number of

steps you take if the watch is on your wrist. Be
sure to wear the watch on your waist as described
in “USING THE BAND CLIP”.

•Note that the accuracy of data measured by the

Trekking Counter can be affected when you are
walking on sand or other soft ground, on a steep
upgrade, or on a steep downgrade.

• To improve the accuracy of measured data, be sure to turn off the Trekking Counter

whenever you are taking a break or stop walking for any other reason.

• Be sure to take care not to drop the watch while walking.

Mode
indicator

Steps

Distance

Elapsed time

To set your stride length

Important!

•If you plan on changing the measurement units,

be sure do so before setting your stride length.
Changing the measurement units automatically
clears the stride length setting, which means you
will have to re-input it.

1. In the Trekking Counter Mode, hold down 

until

the stride length value flashes on the display.

2. Press 

to increase the setting or 

to decrease

it.

• Holding down either button changes the current

selection at high speed.

• You can set a stride length in the range of 10 cm

(4 inch) to 250 cm (98 inch).

Stride length

3. After you finish making the setting, press 

to return to the normal Trekking

Counter Mode (no flashing on the display).

• If you do not operate any button for a few minutes while the stride length is flashing,

the flashing stops and the watch goes back to the normal Trekking Counter Mode
automatically.

Changing the Measurement Units

You can change the measurement units displayed by the watch between the
following.
Stride Length: Centimeters (cm)

Inches (inch)

Distance:

Kilometers (km)

Miles (mile)

To change the measurement units

While the stride length is flashing on the display as described under “To set your stride
length,” press 

to toggle between metric and inch/mile measurement units.

• Note that changing the measurement units automatically clears the stride length

setting. This means that if you want the Trekking Counter to calculate and display
the distance you cover, you must re-input your stride length whenever you change
the measurement units.

Important!

• The Trekking Counter is not intended for use as an all-day pedometer. Trekking

Counter operation requires considerable battery power, so be sure to press 

to

stop its operation after you are through using it. Next, press 

to return to the

Timekeeping Mode.

• To protect against prematurely running down the battery, Trekking Counter operation

turns off automatically and the watch emits a 2-second beep to alert you if the
Trekking Counter is left on for more than 24 hours. Note that measured values up to
the point that the Trekking Counter turns off are retained, so you can start the next
operation from the displayed values.

To use the Trekking Counter

1. Press 

to start Trekking Counter operation.

• Elapsed time, number of steps, and distance covered are all shown on the display

while the Trekking Counter is operating.

2. Press 

to temporarily stop Trekking Counter Operation.

• You can use 

to stop and re-start Trekking Counter operation as many times as

you like. Each time you press 

to re-start, the elapsed time, number of steps and

distance values start from point they were at when you pressed 

to stop Trekking

Counter operation.

3. After you are finished using the Trekking Counter, press 

to stop operation and

then press 

to clear all of the values to zero.

COUNTDOWN ALARM MODE

The countdown timer can be set within a range of 
1 minute to 60 minutes. When the countdown
reaches zero, an alarm sounds for 10 seconds or
until you press any button.

To set the countdown time

1. Hold down 

while in the Countdown Alarm

Mode. The minutes digits flash on the display
because they are selected.

2. Press 

to increase the minutes digits or 

to

decrease them. Holding down either button
changes the setting at high speed.

3. After you set the countdown time, press 

to

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.

Mode
indicator

Current

time

Minutes

Seconds

To use the countdown timer

1. Press 

while in the Countdown Alarm Mode to start the countdown timer.

2. Press 

again to stop the countdown timer.

• You can resume countdown timer operation by pressing 

.

3. Stop the timer and then press 

to reset the countdown time to its starting value.

ALARM MODE

When the Daily Alarm is turned 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 turned on,
the watch beeps every hour on the hour.

To set the alarm time

1. Hold down 

while in the Alarm Mode. The hour

digits flash on the display because they are
selected. At this time the Daily Alarm is turned on
automatically.

2. Press 

to change the selection in the following

sequence.

Mode
indicator

Current

time

Minutes

Alarm on
indicator

Hourly time
signal on
indicator

Hour

Hour

Minutes

3. Press 

to increase the selected digits or 

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 (A) or afternoon (P).

4. 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 switch the daily alarm and hourly time signal on and off

Press 

while in the Alarm Mode to change the status of the daily alarm and hourly

time signal in the following sequence.

To test the alarm

Hold down 

while in the Alarm Mode to sound the alarm.

Both ON

Both OFF

Daily Alarm

only

Hourly Time

Signal only

Alarm on indicator

Hourly time signal on indicator

C

C

C

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

B

B

B

B

B

A

A

A

A

A

A

A

A

A

A

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