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Casio 5173 Operation Manual

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Getting Acquainted

Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to read this manual carefully.
Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any
damage or loss suffered by you or any third party arising through the use of this
product or its malfunction.
Keep the watch exposed to bright light
Bright Light
Solar cell
Solar cell
(Converts light to
electrical power.)

General Guide

C to change from mode to mode.
In any mode (except a setting mode), press
one second.
Timekeeping Mode

Radio Controlled Atomic Timekeeping

This watch receives a time calibration signal and updates its time setting accordingly.
This watch is designed to pick up the time calibration signals transmitted in
Germany (Mainflingen), England (Anthorn), the United States (Fort Collins), China
(Shangqiu), and Japan (Fukushima, Fukuoka/Saga).
See the information under "Signal Reception Troubleshooting" if you experience
problems with time calibration signal reception.
Current Time Setting
This watch adjusts its time setting automatically in accordance with a time calibration
signal. You also can perform a manual procedure to set the time and date, when
The first thing you should do after purchasing this watch is to specify
your Home City (the city where you normally will use the watch). For more
information, see "To specify your Home City".
When using the watch outside the areas covered by the time signal transmitters,
you will have to adjust the current time setting manually as required. See "To set the
time and date manually" for more information about manual time settings.
The U.S. time calibration signal can be picked up by the watch while in North
America. The term "North America" in this manual refers to the area that consists of
Canada, the continental United States, and Mexico.
Using this watch in a country covered by a time calibration signal that is different
from the countries it supports may result in incorrect time indication due to local
application of summer time, etc.
Operation Guide 5173
The electricity generated by the solar cell of the watch is
stored by a built-in battery. Leaving or using the watch
where it is not exposed to light causes the battery to run
down. Make sure the watch is exposed to light as much
as possible.
When you are not wearing the watch on your wrist,
position the face so it is pointed at a source of bright
You should try to keep the watch outside of your sleeve
as much as possible. Charging is reduced significantly
if the face is even only partially covered.
The watch continues to operate, even when it is not
exposed to light. Leaving the watch in the dark can
cause the battery to run down, which will result in some
watch functions to be disabled. If the battery goes
dead, you will have to re-configure watch settings after
recharging. To ensure normal watch operation, be sure
to keep it exposed to light as much as possible.
Battery charges in the light.
Bright Light
All functions
Rechargeable battery
B to illuminate the display for about
World Time Mode
Press C.
Battery discharges in the dark.
The actual level at which some functions are disabled depends on the watch model.
Frequent display illumination can run down the battery quickly and require
charging. The following guidelines give an idea of the charging time required to
recover from a single illumination operation.
Approximately 5 minutes exposure to bright sunlight coming in through a window
Approximately about 8 hours exposure to indoor fluorescent lighting
Be sure to read "Power Supply" for important information you need to know
when exposing the watch to bright light.
If the display of the watch is blank...
If the display of the watch is blank, it means that the watch's Power Saving function
has turned off the display to conserve power.
See "Power Saving Function" for more information.
About This Manual
Depending on the model of your watch, display text
appears either as dark figures on a light background or
light figures on a dark background. All sample displays
in this manual are shown using dark figures on a light
Button operations are indicated using the letters shown
in the illustration.
Each section of this manual provides you with the
information you need to perform operations in each
mode. Further details and technical information can be
found in the "Reference" section.
Stopwatch Mode
Countdown Timer Mode
To specify your Home City
In the Timekeeping Mode, hold down
City code
five seconds until the left dial hand points to T1 and
the city code flashes on the upper display. This is the
Left dial hand
setting mode.
D (east) and B (west) to select the city code
you want to use as your Home City.
PM indicator
Hour : Minutes
: Lisbon, London
MAD, PAR, ROM, BER, STO : Madrid, Paris, Rome, Berlin, Stockholm
: Athens
: Moscow
: Hong Kong, Beijing, Taipei
: Seoul, Tokyo
: Honolulu
: Anchorage
: Vancouver, Los Angeles
: Edmonton, Denver
: Mexico City, Chicago
: Miami, Toronto, New York
: Halifax
: St. Johns
Some or all
Alarm Mode
A for about



  Summary of Contents for Casio 5173

  • Page 1: Radio Controlled Atomic Timekeeping

    MA1011-EB Operation Guide 5173 Getting Acquainted Battery discharges in the dark. Congratulations upon your selection of this CASIO watch. To get the most out of your purchase, be sure to read this manual carefully. LEVEL 1 LEVEL 2 Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any...
  • Page 2 Operation Guide 5173 Japanese Signals Chinese Signal Press A twice to exit the setting mode. • Normally, your watch should show the correct time as soon as you select your Fukushima 500 kilometers Changchun Home City code. If it does not, it should adjust automatically after the next auto receive operation (in the middle of the night).
  • Page 3: World Time

    Operation Guide 5173 To toggle a city code time between Standard Time and Daylight Saving Time • Receive successful Time calibration signal reception takes from two to seven minutes, but in some cases it can take as long In the World Time Mode, press D to display the city as 14 minutes.
  • Page 4: Power Supply

    In all modes, the alarm on indicator is shown for experience problems getting the special rechargeable battery to charge fully, any alarm that currently is turned on. contact your dealer or CASIO distributor about having it replaced. • The alarm on indicator flashes while the alarm is •...
  • Page 5: Timekeeping

    Operation Guide 5173 Battery Power Indicator and Power Recovery Mode indicator Timekeeping The battery power indicator indicates you the current status of the rechargeable You can adjust the Home City time and date in the Timekeeping Mode manually. battery’s power.
  • Page 6: Reference

    Operation Guide 5173 Daylight Saving Time (DST) To adjust the home positions manually Daylight Saving Time (summer time) advances the time setting by one hour from In the Timekeeping Mode, hold down D for about three Correct dial hand Standard Time. Remember that not all countries or even local areas use Daylight...
  • Page 7: Specifications

    Operation Guide 5173 Transmitters Alarms: Four one-time alarms; one snooze alarm; Hourly Time Signal The time calibration signal received by this watch depends on the currently selected Illumination: LED (light-emitting diode); Auto Light Switch (Full Auto LED Light Home City.