G-Shock GAC-100 User Manual

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G-Shock GAC-100 User Manual

MA1306-EC Ú #!3)/ #/-054%2 #/ #,4$

Operation Guide 5277

Your watch may differ somewhat from the one shown in the illustration.

Using the Stopwatch

The stopwatch measures elapsed time in 1/20-second increments up to 11 hours, 59 minutes, 59.95 seconds.

 

Stopwatch 1/20-second Hand

 

Hour Hand Minute Hand

Second Hand

Click 1

 

 

A

 

Click 2

 

 

 

B

 

Crown

Stopwatch Second Hand

Day Indicator

Stopwatch Hour Hand

 

Stopwatch Minute Hand

Stopwatch functions

To adjust the time setting

When the second hand is at

12 o’clock, pull the Crown out to Click 2.

Rotate the Crown to change the time setting.

Push the Crown back in.

Note

Take care that you set the correct AM or PM time.

When changing the time, move the minute hand four or fi ve minutes past your fi nal setting, and then back it up to the setting you want.

To change the day indicator setting

Pull the Crown out to Click 1.

Rotate the Crown away from you to set the day.

Push the Crown back in.

Note

The day indicator setting uses a 31-day month. Make adjustments for months of shorter lengths.

Avoid changing the day indicator setting between the hours of 9 p.m. and 1 a.m. Otherwise, the day indicator may not change correctly at midnight.

Crown Operations

Some water-resistant models (100 meters, 200 meters) have a screw-in crown. When you need to perform a crown operation, rotate it towards you to unscrew it. Then pull the crown out. Avoid applying undue force when pulling. The watch loses its water resistance while the crown is unscrewed. After performing a crown operation, fully screw the crown back in.

If your watch has a rotary bezel...

You can rotate the bezel to align its ▼ mark with the minute hand. Then you will be able to tell how much time has elapsed since aligning the ▼ mark.

Crown

Loosen

Start

Elapsed time

Current

Elapsed time

 

 

 

 

 

 

 

A

 

A

 

A

 

A

 

B

Start

Stop

Re-start

Stop

Reset

Split time

 

 

 

 

 

 

 

A

 

B

 

B

 

A

 

B

Start

Split

Split release

Stop

Reset

Two finishes

 

 

 

 

 

 

 

A

 

B

 

A

 

B

 

B

Start

Split

Stop

Split release

Reset

 

 

First runner

Second runner

Display time of

 

 

 

fi nishes.

fi nishes.

second runner.

 

 

 

Display time of

 

 

 

 

 

 

 

fi rst runner.

 

 

 

 

 

Important!

Do not operate the stopwatch with the crown pulled out.

Note

The stopwatch 1/20-second hand will move for 10 minutes after you start an elapsed time operation. After that, it will stop at 0 position. When you stop the elapsed time operation, the 1/20-second hand will move to the 1/20-second reading for the current elapsed time.

Correcting the 0 Positions of the Hands

Perform the following procedure if the stopwatch hands do not return to their 0 (zero) positions when you reset the stopwatch.

Operational Flow

Use the A button to select the hand whose zero position you want to correct. Each time you hold down A for about two seconds in the following procedure, it cycles to the next hand to be corrected.

Use the B button in the following procedure to correct the 0 position of the currently selected hand. Holding down B moves the current hand at high speed.

Pull the Crown out to Click 2.

Hold down A for about two seconds, the Stopwatch 1/20-second Hand will rotate to indicate the 1/20-second hand setting mode.

If the hand does not align with 0 position, use the B button to adjust it.

Hold down A for about two seconds, the Stopwatch Second Hand will rotate to indicate the second hand setting mode.

If the hand does not align with 12 o’clock, use the B button to adjust it.

Hold down A for about two seconds, the Stopwatch Hour Hand and Stopwatch Minute Hand will rotate to indicate the hour hand and minute hand setting mode.

If the hands do not align with 0 hours and 0 minutes, use the B button to adjust them.

Specifications

Accuracy: ±20 seconds average per month

Stopwatch: Measuring Capacity: 11:59'59.95" (12 hours) Measuring Unit: 1/20 second

Measurements: Elapsed time; split time; two fi nishes Battery: One silver oxide battery (Type: SR927SW)

Battery Life: Approximately 3 years (2 hours stopwatch operation per day)

Low Battery Indicator: Second hand moves in 2-second increments when power is low.

After all of the hands are the way you want, push the Crown back in.

Important!

Timekeeping stops while the crown is pulled out. Correct the current time setting after performing the above operation.

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