Casio 3770 Operation Manual

MO0505-EA
Operation Guide 3770 3771 4308 4309
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to carefully read this manual and keep it on hand for later reference
when necessary.
About This Manual
Modules 3770 and 4308
Modules 3771 and 4309
General Guide
• Press C to change from mode to mode.
• In any mode, press B to illuminate the face of the watch.
Timekeeping Mode
Radio-controlled Timekeeping
This watch receives a time calibration signal and updates its time setting accordingly.
The time calibration signal includes both Standard Time and Daylight Saving Time
(summer time) data.
• This watch is designed to pick up the time calibration signal transmitted from Rugby,
England and the signal from Mainflingen, Germany.
Modules 3770 and 4308
Day of week
Hour hand
Current Time Setting
This watch automatically adjusts its time setting in accordance with a time calibration
signal. You can also perform a manual procedure to set the time and date, when
necessary.
• The first thing you should do after purchasing this watch is to set your Home City,
which is the city where you will normally use the watch. For more information, see
"To set your Home City" below.
• When using the watch outside the ranges of the time signal transmitters, you have to
adjust the current time setting manually as required. See "Timekeeping" for more
information about manual time setting.
• The analog time of this watch is synchronized with the digital time. Because of this,
the analog time setting is automatically adjusted whenever you change the digital
setting. See "Analog Timekeeping" for more information.
To set your Home City
Modules 3770 and 4308
City code
Modules 3771 and 4309
City code
3. Press A to exit the setting screen.
• Normally, your watch should show the correct time as soon as you select your Home
City Code. If it does not, it should adjust automatically after the next auto receive (in
the middle of the night). You can also perform manual receive or you can set the time
manually.
• If you are in an area that does not use Daylight Saving Time (summer time), turn off
the DST setting.
• The operational procedures for Modules 3770, 3771,
4308, and 4309 are identical. All of the illustrations in
this manual show Modules 3770 and 4308.
• Button operations are indicated using the letters shown
in the illustration.
• Most of the display examples in this manual show only
the digital display, without the analog hands.
• 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.
World Time Mode
Press C.
Modules 3771 and 4309
Minute hand
Hour hand
Seconds
Month – Day
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Use D (east) and B (west) to scroll through the city
codes until the one you want to use as your Home City
is displayed.
• The following are the city codes for major cities in the
Western Europe time zones.
City
City Other major cities in same time zone
Code
LIS Lisbon
Dublin, Casablanca, Dakar, Abidjan
LON London
BCN Barcelona
MAD Madrid
PAR Paris
Amsterdam, Algiers, Hamburg, Frankfurt,
MIL Milan
Vienna
ROM Rome
BER Berlin
STO Stockholm
Cairo, Jerusalem, Helsinki, Istanbul,
ATH Athens
Beirut, Damascus, Cape Town
Stopwatch Mode
Hand Setting Mode
To display the digital time and last signal screen
• In the Timekeeping Mode, press A to cycle through the digital time screens as
shown below.
• In the Timekeeping Mode, press D to display the last signal screen. The last signal
screen shows the time and date of the last successful time calibration signal
reception.
Day of week
Press D.
Last Signal
Screen
Time Calibration Signal Reception
There are two different methods you can use to receive the time calibration signal:
auto receive and manual receive.
• Auto Receive
With auto receive, the watch receives the time calibration signal automatically five or
six times a day. When any auto receive is successful, the remaining auto receive
operations are not performed. For more information, see "About Auto Receive".
• Manual Receive
Manual receive lets you start a time calibration signal reception with the press of a
button. For more information, see "To perform manual receive".
Important!
• When getting ready to receive the time calibration signal, position the watch as
shown in the nearby illustration, with its 12 o'clock side facing towards a window.
Make sure there are no metal objects nearby.
• The watch should not be on its side or facing the wrong way.
• Proper signal reception can be difficult or even impossible under the conditions listed
below.
Inside or Inside a
vehicle
among
buildings
Countdown Timer Mode
Alarm Mode
Press A.
PM indicator
A
Hour : Minutes
Reception time Reception date
Resin Band Metal Band
Near Near a Near high-
household construction tension
appliances, site, airport, or power lines
office other sources
equipment, of electrical
or a mobile noise
phone
Among or
behind
mountains
1