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Operation Guide 3446

E-9

Illumination

In any mode, press 

L

 to illuminate the display for about two seconds.

 

x

Illumination may be hard to see when viewed under direct sunlight.

 

x

Illumination turns off automatically whenever an alarm sounds.

 

x

Frequent use of illumination runs down the battery.

E-8

5.  After you set the time and date, press 

A

 to return to the Timekeeping Mode.

E-7

3.  While the seconds digits are selected (fl ashing), press 

D

 to reset the seconds to 

00. If you press 

D

 while the seconds count is in the range of 30 to 59, the seconds 

are reset to 00 and 1 is added to the minutes. If the seconds count is in the range of 
00 to 29, the minutes count is unchanged.

4.  While any other digits (beside seconds) are selected (fl ashing), press 

D

 to 

increase the number or 

B

 to decrease it. While the 12/24-hour format setting is 

selected, press 

D

 or 

B

 to toggle it between 12 and 24.

 

x

 Except for when adjusting the seconds or setting the 12/24-hour format, holding 
down a button changes the current selection at high speed.

 

x

 When the 12-hour format is selected, the indicator 

P

 appears on the display to 

indicate “P.M.” times. There is no indicator for “A.M.” times.

 

x

 When the 24-hour format is selected, the indicator 

24

 appears on the display.

 

x

 The year can be set in the range of 2000 to 2099.

 

x

 The watch’s built-in full automatic calendar makes allowances for different month 
lengths and leap years. Once you set the date, there should be no reason to 
change it except after you have the watch’s battery replaced.

 

x

 The day of the week is displayed automatically in accordance with the date (year, 
month, and day) settings.

E-6

Timekeeping Mode

To set the time and date

1.  Hold down 

A

 while in the Timekeeping Mode until 

the seconds digits fl ash on the display because they 
are 

selected

.

2.  Press 

C

 to change the selection in the following 

sequence.

12/24-Hour Format

C

C

C

Seconds

Hour

Minutes

Day

Month

Year

C

C

C

C

Seconds

Day of week

Month – Day

Vibration alarm on indicator 
(page E-10)

PM indicator

Minutes

Hour

E-5

 

x

 This watch returns to the Timekeeping Mode whenever you hold down the 

C

 button 

for one or two seconds. If you ever lose track of what mode you are in or what you 
should do next, hold down 

C

 to return to regular timekeeping.

 

x

 In any mode press 

L

 to illuminate the display.

C

C

C

Stopwatch Mode

Alarm Mode

Dual Time Mode

E-4

General Guide

 

x

 Press 

C

 to change from mode to mode.

 

x

 After you perform an operation in any mode, pressing 

C

 returns to the Timekeeping 

Mode.

 

x

 If you do not press any button for a few minutes while making settings in any mode 
(indicated when settings are fl ashing), the watch automatically clears the setting screen 
(settings stop fl ashing) and returns to the normal display for the mode you are in.

C

Timekeeping Mode

Countdown Timer Mode

C

E-3

Procedure Lookup

The following is a handy reference list of all the operational procedures contained in 
this manual.

To set the time and date ......................................................................................... E-6

To turn the vibration alarm on and off ................................................................. E-11

To set the countdown start time .......................................................................... E-13

To use the countdown timer ................................................................................. E-14

To turn the Auto-Start function on and off .......................................................... E-17

To set the alarm time ............................................................................................. E-18

To turn the daily alarm and hourly time signal on and off ................................ E-20

To test the alarm sound ........................................................................................ E-21

To set the Dual Time ............................................................................................. E-22

E-2

Contents

General Guide .......................................................................................................... E-4

Timekeeping Mode .................................................................................................. E-6

Illumination .............................................................................................................. E-9

Vibration Alarm ...................................................................................................... E-10

Countdown Timer Mode ........................................................................................ E-12

Stopwatch Mode .................................................................................................... E-15

Alarm Mode ............................................................................................................ E-18

Dual Time Mode ..................................................................................................... E-22

Specifi cations ........................................................................................................ E-24

E-1

About This Manual

 

x

 Note that the product illustrations in this manual are intended for reference only, 
and so the actual product may appear somewhat different than depicted by an 
illustration.

 

x

 All explanations in this manual use expressions such as “sounds the alarm” for 
alarm operations. When the Vibration Alarm is turned on, these expressions should 
be understood to mean “causes the watch to vibrate” (page E-10).

MA1602-EA

© 2016 CASIO COMPUTER CO., LTD.

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