Operation Guide 2607 2637 2687
1
MO0306-EA
Getting Acquainted
Congratulations upon your selection of this CASIO w atch. T o get the most out of your
purchase, be sure to carefully read this manual and k eep it on hand for later ref erence
when necessary .
Expose the watch to bright light to charge its battery before using it.
Y ou can use this watch e ven as its batter y is being charged by e xposure to br ight
light.
••
••
• Be sure to read “Batter y” of this manual f or impor tant information you
need to kno w when e xposing the watc h to bright light.
If the display of the watch is b lank...
If the sleep indicator (S /SLEEP ) is on the display , it
means that the display is b lank because the watch’ s
Po wer Saving function has shut it to conserve pow er .
Po wer Sa ving automatically turns off the display and
enters a sleep state whenev er your watch is left in an area
where it is dark for a certain period.
• The initial factory default setting is P ower Saving on.
• The watch recov ers from the sleep state if you move it to
a well-lit area
*
, if you press any b utton, or if you angle
the watch tow ards your f ace for reading.
*
It can take up to two seconds for the display to turn on.
• See “Power Sa ving Function” for more information.
Sleep indicator
About This Manual
• The operational procedures f or Modules 2607, 2637 and 2687 are identical. All of
the illustrations in this manual show Module 2607.
• Button operations are indicated using the letters sho wn in the illustration.
• Each section of this manual pro vides you with the information y ou need to perform
operations in each mode. Fur ther details and technical information can be found in
the “ Reference” section.
Module 2607
Module 2637
(Light)
(Light)
Module 2687
(Light)
General Guide
• Press C to change from mode to mode .
• In any mode , press L to illuminate the display .
Stopwatch Mode
Timekeeping Mode
Alarm Mode
▲
▲
▲
Press C .
▲
W orld Time Mode
Time Recorder Mode
▲
Timekeeping
Use the Timekeeping Mode to set and vie w the current time and date.
• The watch is equipped with a Time Recorder feature that lets you record the current
Home City time (month, day , hour , minutes, seconds, and DST on/off setting) with
the touch of a button. See “T o record a Time Recorder time” for more inf ormation.
• Pressing D displays the Last Signal screen (date and time that the time calibr ation
signal was last received) in the Timekeeping Mode.
Last Signal Screen
▲
Press D.
Day of week
Receive time
Month – Day
Hour : Minutes Seconds
PM
indicator
▲
Receive date
Current Time Setting
This watch automatically adjusts its time setting in accordance with a time calibration
signal. Y ou can also perf or m a manual procedure to set the time and date , when
necessary .
• Before using the w atch in W ester n Europe, first use the procedure under “ Setting Up
the Watch f or Use in Western Europe” to set the time in accordance with a time
calibration signal.
• Note that after you set y our Home City (the city where you normally use the watch)
code, you m ust also turn on the watch’ s time calibr ation signal receiver if you w ant to
enable auto time calibr ation. See “About Auto Receive ” for more inf or mation.
• See “Setting the Time and Date Man ually” f or information about manual settings.
Setting Up the Watch for Use in W estern Europe
Y ou need to make the f ollowing three settings before using this watch in Western
Europe. The following pro vides a general ov erview of the setting procedure. For full
details, see “ Setting the Time and Date Manually” and “Time Calibration Signal
Reception”.
• Specify the city code for y our Home City (the city where you will normally use the
watch).
• Select the auto Daylight Sa ving Time (summer time) setting.
• P erform the manual time calibration signal receiv e operation to set the current time.
T o set up the watch f or use in Western Europe
1. In the Timek eeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Use D (+) and B(– ) to select the city code you want to
use as your Home City .
• The f ollowing are the city codes for major cities in the
Western Europe time zones.
City code
BER and PA R : Berlin, Paris, Milan, Rome,
Amsterdam, Hamburg,
Fr ankfurt, Vienna
LON: London
3. Press C and the Daylight Sa ving Time (summer time)
setting screen appears.
4. Use D to select AU TO (auto DST).
• A uto DST specifies auto switching betw een Daylight
Saving Time (DST) and Standard Time.
5. Press A twice to exit the setting screen.
6. Hold down D for about tw o seconds until the watch
beeps.
• Release D and the message RC! appears to indicate
that signal reception has started.
• Time calibration signal reception takes from tw o to six
minutes. T ak e care that you do not move the watch
during this time.
Receiving indicator
• When getting ready to receiv e the time calibration signal, position the watch as
shown in the nearby illustration, and place it near a windo w in a location where there
are no nearby metal objects.
• The watch should not be on its side or f acing the wrong way .
• See the inf ormation under “ Time Calibration Signal Reception Precautions ” if you
experience problems with time calibr ation signal reception.
Resin Band
Metal Band
• After signal reception is complete , the display of the watch changes to the Last
Signal screen.
Time Calibration Signal Reception
This watch is designed to pick up a time calibr ation signal and update its time setting
in accordance with the signal. There are two diff erent methods you can use to receive
the signal: Auto Receive and Manual Receive. With A uto Receive, the watch
automatically receives the calibration signal f our times each day and mak es
appropriate adjustments. With Manual Receive , you perf orm a specific button
operation to receive the calibration signal.
• This watch is ab le to receive the time calibration signal
transmitted from Mainflingen, Germany (located 25
kilometers southeast of Fr ankfurt). Signal reception is
possible within the area represented by a circle with a
radius of about 1000 kilometers.
• At distances further than about 500 kilometers, the
signal may become weak and reception ma y be
impossible under certain conditions.
• Signal reception ma y be poor in the shaded area on the
map, e ven though it is within 1,000 kilometers of the
signal transmitter .
Frankfurt
Note
• If you are using the time calibr ation signal to set the time for this watch, be sure to
correctly set your Home City . Otherwise, there is the chance that the watch will not
set the correct time. See “ Setting the Time and Date Manually” f or details.
• Note that signal reception is possible only when the w atch is within range of a time
calibration signal transmitter , and BER, PA R , LON, or A TH is selected as the Home
City code.
• See “City Code T ab le” for a complete list of av ailable city codes.
• The current time setting in accordance with the time calibration signal tak es priority
over any time settings y ou make.
• A uto receive is turned on when the watch is shipped from the f actory .
• See the inf ormation under “ Time Calibration Signal Reception Precautions ” if you
experience problems with time calibr ation signal reception.