Operation Guide 3550
EN-9
Stopwatch Mode Time Setting
CC
C
Alarm Mode
x After you perform an operation in any mode, pressing C returns to the
Timekeeping Mode.
x Press B in any mode to illuminate the face of the watch.
EN-8
Selecting a Mode
x Press C to change the mode.
* SU: Sunday MO: Monday TU: Tuesday WE: Wednesday TH: Thursday FR: Friday
SA: Saturday
Timekeeping Mode
CD
PM indicator
Day of week*
Month Day Year
Month Day
Hour : Minute
Second
EN-7
3. Use D to change the selected setting.
Screen This setting item:
Reset the second to 00
x 30 to 59 seconds: Adds 1 to minutes
Change the hour or minute
x Holding down D changes the current selection at high speed.
Toggle between 12-hour (12HR) and 24-hour (24HR)
timekeeping
Change the year, month, day, or day of the week
x Holding down D changes the current selection at high speed.
4. Press C to exit the setting screen.
x The watch returns to the Timekeeping Mode automatically if you do not perform
any button operation for one or two minutes in the Time Setting Mode.
EN-6
Configuring Time and Date Settings
To configure time and date settings
1. In the Timekeeping Mode, press C three times. This causes
the seconds to flash on the display.
2. Press A to move the flashing in the sequence shown below
to select a setting.
Second Hour
Month
Minute
12/24-Hour Format
Year
A
A
A
A
A
A
A
A
2
3
4
Day of the week
Day
7
6
1
5
EN-5
Watch Features
You can also find information
about operational procedures
at the CASIO website.
https://s.casio.jp/mw/en/3550/
◆
Alarm
◆
Stopwatch
EN-4
Main Indicators ................................................................................................. EN-15
Specifications ................................................................................................... EN-16
EN-3
Contents
About This Manual .............................................................................................. EN-2
Watch Features ................................................................................................... EN-5
Configuring Time and Date Settings ................................................................. EN-6
To configure time and date settings ................................................................EN-6
Selecting a Mode ................................................................................................ EN-8
Alarm .................................................................................................................. EN-11
To set the alarm time .....................................................................................EN-12
To stop the alarm ...........................................................................................EN-13
To enable and disable the Daily Alarm and Hourly Time Signal .....................EN-13
To test the alarm ............................................................................................EN-13
Stopwatch ......................................................................................................... EN-14
To measure elapsed time ...............................................................................EN-14
EN-2
About This Manual
x Button operations are indicated using the letters shown in
the illustration.
x Each section of this manual provides you with the information
you need to perform operations in each mode.
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.
EN-1
ENGLISH
You can also find information about
operational procedures at the CASIO website.
https://s.casio.jp/mw/en/3550/
MA2209-EA
© 2023 CASIO COMPUTER CO., LTD.
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