Manual Casio G-Shock GA-140GM-1A1ER Watch

Manual

Operation Guide 5612 5613

E-19

To specify lap time or split time readings

1. In the Stopwatch Mode, make sure the stopwatch is stopped and reset to all zeros.

• Make sure that LAP (lap times) or SPL (split times) is shown in the lower digital

display.

• If you need to reset the stopwatch to all zeros, press

A

.

2. You can toggle between LAP (lap times) and SPL (split times) by pressing

A

.

A

E-18

Example:

When the speed value is 1,740.

Speed hand: Indicates

40

.

Upper digital segments: Indicate

700

.

1000

and

MACH

indicators: Displayed

Time Measurement

You need to specify either lap time (page E-21) or split time (page E-23) measurement before

you start a stopwatch operation.

• If you want to measure total elapsed time, select split time measurement.

E-17

How speed is indicated

• While an elapsed time measurement operation is being

performed in the Stopwatch Mode, the watch will

indicate a speed value, which is calculated based on

the distance you specified and the elapsed time.

The speed value is indicated as described below.

• Upper digital segments: 100 unit

•

1000

appears when the speed exceeds 1,000.

•

MACH

appears when the speed exceeds 1,226.

• The speed hand indicates speed values less than 100.

Only even-numbered values are indicated.

• Speed can be indicated from 0 to 1998.

OVER

is

indicated by the speed hand when the speed exceeds

1998.

Segments

(100 unit)

OVER

Speed hand

(Up to 100)

Mach (MACH)

1000 indicator

E-16

To specify a distance value

1. In the Stopwatch Mode, make sure the stopwatch is

stopped and reset to all zeros.

• If you need to reset the stopwatch to all zeros, press

A

.

2

. Hold down

A

for at least three seconds until the current

distance value setting flashes in the upper digital display.

• This is the distance value setting mode.

3. Press

C

to move the flashing between the values on

the left side and right side of the distance value decimal

point.

4. While a distance value is flashing, use

D

(+) and

B

(–)

to change it.

• You can specify a distance value in the range of 0.1

to 99.9.

5. After specifying the distance value you want, press

A

to exit the setting mode.

E-15

Important!

• Check to make sure that the speed hand is not moving before you perform any

Stopwatch Mode button operation.

Specifying a Distance Value

You can use the procedure below to specify a distance value, if you want. If you

specify a distance value, the watch will calculate and indicate speed for certain

stopwatch operations.

• The distance value represents kilometers, miles, or any other distance unit you

want. Specifying a distance value of 10.0, for example, can mean 10.0 kilometers or

10.0 miles.

• No speed calculation is performed when 0.0 is specified as the current distance

value.

• For lap time readings, you can specify either the lap distance (when all the laps are

the same distance) or the total race distance.

• For split time readings, you can specify the total race distance only. Though the

watch will indicate a speed each time you take a split reading, they will be based

on the total race distance, and so they will not indicate actual intermediate split

speeds.

E-14

Stopwatch

You can use the stopwatch to measure elapsed time, lap

times and split times. If you specify a distance value, the

stopwatch also will calculate and display speeds.

• The digital display range of the stopwatch is 99 hours,

59 minutes, 59.999 seconds. The stopwatch continues

to run until you stop it. If it reaches the above limit, it will

restart the time measurement from zero.

• The stopwatch operation continues even if you exit the

Stopwatch Mode. If you exit the Stopwatch Mode while

a stopwatch operation is in progress, the upper digital

segments will appear and disappear sequentially in

accordance with the passage of timekeeping seconds.

This is to let you know that a stopwatch operation is in

progress.

• All of the operations in this section are performed in the

Stopwatch Mode, which you enter by pressing

C

(page

E-7).

Speed hand

Upper digital

segments

E-13

4. When the setting you want is selected, press

A

to exit the setting mode.

• The DST indicator appears to indicate that Daylight Saving Time is turned on.

12-hour and 24-hour timekeeping

• With the 12-hour format, the PM indicator appears for times in the range of noon to

11:59 p.m. and no indicator appears for times in the range of midnight to 11:59 a.m.

• With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without

the PM indicator.

• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is

applied in all other modes.

E-12

5. Press

A

to exit the setting mode.

• The day of the week is displayed automatically in accordance with the date

(year, month, and day) settings.

Daylight Saving Time (DST)

Daylight Saving Time (summer time) advances the time setting by one hour from

Standard Time. Remember that not all countries or even local areas use Daylight

Saving Time.

To change the Daylight Saving Time (summer time) setting

1. In the Timekeeping Mode, hold down

A

for at least

three seconds until the currently selected city code

flashes in the lower digital display. This is the setting

mode.

2. Press

C

. This will display the DST setting screen.

3. Use

D

to toggle the DST setting on (

on

) and off (

OFF

).

• The default DST setting is off (

OFF

).

DST indicator

E-11

Screen: To do this: Do this:

Toggle between 12-hour (

12H

) and

24-hour (

24H

) timekeeping

Press

D

.

Reset the seconds to

00

Press

D

.

Change the hour and minutes

Use

D

(+) and

B

(–).

Change the year, month, or day

Toggle the face illumination duration

between 1.5 seconds (

LT1

) and three

seconds (

LT3

)

Press

D

.

E-10

3. Press

C

to change the flashing screen content in the sequence shown below to

select the other settings.

City Code DST

12/24-Hour

Format

Illumination

Duration

Seconds Hour

YearMonthDay Minutes

4. When the setting you want to change is flashing, use

D

or

B

to change it as

described below.

Screen: To do this: Do this:

Change the city code

Use

D

(east) and

B

(west).

Toggle the DST setting between Daylight

Saving Time (

on

) and Standard Time

(

OFF

).

Press

D

.

Rating

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