MA1201-EB
Operation Guide 5219 (OC)
About This Manual
Operations are performed using the watch’s crown, and the two buttons
indicated by the letters A and B in this manual.
Hand Functions
z Hour Hand
x Second Hand
c Minute Hand
v Upper Dial Hand: Indicates a time, in 24-hour format, depending on the
b Lower Dial Hand: Indicates the current day of the week.
n Day
This User’s Guide uses numbers shown above to identify watch hands and
indicators.
About the crown
Some of the operations of this watch are performed by pulling out the crown, while other operations are
performed by pushing the crown in.
Button operations may become disabled after you perform a crown operation. If this happens, rotate
x
the crown slightly. This should restore button operations.
current mode.
Congratulations upon your selection of this CASIO watch.
This watch does not have a city code that corresponds to the UTC offset of –3.5 hours. Because of
this, the radio-controlled atomic timekeeping function will not display the correct time for Newfoundland,
Canada.
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.
Things to check before using the watch
1. Hold down B at least two seconds to enter the Timekeeping Mode, and then observe the
ENGLISH
movement of the
Is the x Second Hand moving smoothly at one-second intervals?
Is the x Second Hand moving at two-second intervals
or is it stopped completely?
Power is low. Charge the watch by placing it in a
location where it is exposed to light. For details, see
“Charging the Watch” (page E-7).
2. Check the Home City.
Use the procedure under “To confi gure Home City settings” (page E-20) to confi gure your Home City.
Important!
Proper time calibration signal reception depends on correct Home City, time, and date settings in the
Timekeeping Mode. Make sure you confi gure these settings correctly.
Second Hand.
NO
YES
The watch is charged. For details about
charging, see “Charging the Watch”
(page E-7).
Go to step 2.
YES
NEXT
E-1
E-2
3. Set the current time.
x To set the time using a time calibration signal
See “To get ready for a receive operation” (page E-13).
x To set the time manually
See “Confi guring Current Time and Date Settings Manually” (page E-23).
The watch is now ready for use.
x
For details about the watch’s radio controlled timekeeping feature, see “Radio Controlled Atomic
Timekeeping” (page E-11).
E-4
E-29 Adjusting Home Positions
E-30 To adjust home positions manually
E-32 Troubleshooting
E-36 Specifi cations
Contents
E-2 About This Manual
E-3 Things to check before using the watch
E-7 Charging the Watch
E-10 To recover from the sleep state
E-11 Radio Controlled Atomic Timekeeping
E-13 To get ready for a receive operation
E-15 To perform manual receive
E-16 To check the result of the latest receive operation
E-16 To turn auto receive on and off
E-18 Mode Reference Guide
E-19 Timekeeping
E-20 Confi guring Home City Settings
E-20 To confi gure Home City settings
E-22 To switch between standard time and summer time manually
E-23 Confi guring Current Time and Date Settings Manually
E-23 To change the current time setting manually
E-25 To change the current date setting manually
E-27 Using the Stopwatch
E-27 To perform elapsed time measurement
Charging the Watch
The face of the watch is a solar panel that generates power from light. The generated power charges a
built-in rechargeable battery, which powers watch operations. The watch charges whenever it is exposed
to light.
Charging Guide
Warning!
Leaving the watch in bright light for charging can cause it to become quite hot. Take care when
handling the watch to avoid burn injury. The watch can become particularly hot when exposed to
the following conditions for long periods.
x
On the dashboard of a car parked in direct sunlight
Too close to an incandescent lamp x
Under direct sunlight x
Whenever you are not
wearing the watch, be sure
to leave it in a location where
it is exposed to light.
Best charging
x
performance is achieved
by exposing the watch to
light that is as strong as
possible.
When wearing the watch, makes
sure that its face is not blocked
from light by the sleeve of your
clothing.
The watch may enter a sleep
x
state (page E-10) if its face is
blocked by your sleeve even
only partially.
E-3
E-5
E-6
E-7
Operation Guide 5219 (OC)
Important!
x
Keep the watch in an area normally exposed to bright light when storing it for long periods. This helps
to ensure that power does not run down.
x
Storing the watch for long periods in an area where there is no light or wearing it in such a way that it is
blocked from exposure to light can cause power to run down. Make sure that the watch is exposed to
bright light whenever possible.
Power Levels
You can get an idea of the watch’s power level by observing the movement of
the
Second Hand in the Timekeeping Mode.
x
Second Hand is moving normally at one-second intervals, power is
If the
at Level 1.
If the
x
Second Hand is moving at two-second intervals, power is at Level 2,
which is quite low. Expose the watch to light as soon as possible so it can
charge (Low battery alert).
Level Hand Movement Function Status
1 Normal. All functions enabled
Second Hand moves at two-second
x
2
intervals.
Moves at two-second
intervals.
When power drops to Level 3, all settings (including timekeeping) will be cleared. Recharging the x
battery will reset all settings to their initial factory defaults.
E-8
Power Saving
Power Saving enters a sleep state automatically whenever the watch is left for a certain period in an area
where it is dark. The table below shows how watch functions are affected by Power Saving.
There actually are two sleep state levels: “second hand sleep” and “function sleep”.
x
Elapsed Time in Dark Operation
60 to 70 minutes (second hand sleep)
6 or 7 days (function sleep)
The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch is already in a sleep x
state when 6:00 AM arrives, however, it will remain in the sleep state.
The watch will not enter a sleep state while it is in the Stopwatch Mode. x
To recover from the sleep state
Move the watch to a well-lit area or press any button.
nn Day changes to 1 (home position).
xx Second Hand stopped.
3
zz Hour Hand and cc Minute Hand
stopped at 12 o’clock.
xx Second Hand only stopped at 12 o’clock, all other functions enabled
All functions, including timekeeping, disabled x
Internal timekeeping maintained x
Time calibration signal reception
disabled
All functions disabled
Power Recovery Mode
The watch is designed to go into a power recovery mode that stops hand operation temporarily whenever
power suddenly drops below a certain level due to continuous signal reception or other operations over a
short period. Note that all operations are disabled while the watch is in the power recovery mode.
The hands will move to the correct positions and the watch will resume normal operation after power
recovers (in about 15 minutes). Putting the watch in a location where it is exposed to light will help power
to recover sooner.
Charging Times
Exposure Level (Brightness)
Outdoor sunlight (50,000 lux) 8 minutes 3 hours 29 hours
Window sunlight (10,000 lux) 30 minutes 7 hours 108 hours
Window sunlight on cloudy day (5,000 lux) 48 minutes 11 hours 175 hours
Indoor fl uorescent lighting (500 lux) 8 hours 118 hours – – –
1 Approximate exposure each day to generate power for normal daily operation. *
2 Approximate exposure to take power up one level. *
The above times are for reference only. Actual times depend on lighting conditions.
x
For details about the operating time and daily operating conditions, see the “Power Supply” section of x
the Specifi cations (page E-36).
Daily
Operation *1
Level Change *2
Level 3 Level 2 Level 1
Radio Controlled Atomic Timekeeping
This watch receives a time calibration signal and updates its time setting accordingly. However, when
using the watch outside of areas covered by time calibration signals, you will have to adjust the settings
manually as required. See “Confi guring Current Time and Date Settings Manually” (page E-23) for more
information.
This section explains how the watch updates its time settings when the city code selected as the Home
City is in Japan, North America, Europe, or China, and is one that supports time calibration signal
reception.
If your Home City Code setting is this:
LONDON (LON), PARIS (PAR), ATHENS (ATH) Anthorn (England), Mainfl ingen (Germany)
HONG KONG (HKG) Shangqiu City (China)
TOKYO (TYO) Fukushima (Japan), Fukuoka/Saga (Japan)
NEW YORK (NYC), CHICAGO (CHI),
DENVER (DEN), LOS ANGELES (LAX),
ANCHORAGE (ANC), HONOLULU (HNL)
Important!
x HONOLULU (HNL) and ANCHORAGE (ANC) are quite far from the calibration
The areas covered by
signal transmitters, so certain conditions may cause reception problems.
The watch can receive the signal from the transmitter
located here:
Fort Collins, Colorado (United States)
E-9
E-10
Approximate Reception Ranges
The Anthorn signal is receivable
within this area.
E-12
UK and German Signals North American Signal
Anthorn
500 kilometers
1,500 kilometers
Mainfl ingen
Japanese Signals Chinese Signal
Fukushima
500 kilometers
Fukuoka/Saga
1,000 kilometers
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
Changchun500 kilometers
1,500 kilometers
Signal reception may be diffi cult or even impossible under the conditions described below. x
Inside or among
buildings
What you should do next depends on whether you are using Auto Receive or Manual Receive.3.
Auto Receive: Leave the watch over night in the location you selected in step 2. See “Auto Receive” x
on page E-14 for details.
Manual Receive: Perform the operation under “To perform manual receive” on page E-15. x
Auto Receive
x
With Auto Receive, the watch performs the receive operation each day automatically up to six times (up
to fi ve times for the Chinese calibration signal) between the hours of midnight and 5 a.m. (according
to the Timekeeping Mode time). When any receive operation is successful, none of the other receive
operations for that day are performed.
When a calibration time is reached, the watch will perform the receive operation only if it is in the
x
Timekeeping Mode. The receive operation is not performed if a calibration time is reached while you
are confi guring settings.
E-14
Inside a vehicle Near household
appliances,
offi ce
equipment, or a
mobile phone
Near a
construction
site, airport, or
other sources of
electrical noise
Near hightension power
lines
Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong
Among
or behind
mountains
Signal reception may not be possible at the distances noted below during certain times of the year or x
day. Radio interference may also cause problems with reception.
Mainfl ingen (Germany) or Anthorn (England) transmitters: 500 kilometers (310 miles)
−
Fort Collins (United States) transmitter: 600 miles (1,000 kilometers) −
Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles) −
Shangqiu (China) transmitter: 500 kilometers (310 miles) −
As of December 2010, China does not use Daylight Saving Time (DST). If China does go to the x
Daylight Saving Time system in the future, some functions of this watch may no longer operate
correctly.
Using this watch in a country covered by a time calibration signal that is different from the countries it
x
supports may result in incorrect time indication due to local application of summer time, etc.
To get ready for a receive operation
Confi rm that the watch is in the Timekeeping Mode. If it isn’t, hold down 1. B at least two seconds to
enter the Timekeeping Mode.
Place the watch in a location where signal reception is good.2.
12 o’clock
or
To perform manual receive
In the Timekeeping Mode (page E-19), keep 1. A depressed (for about two seconds) as the
Second Hand goes through the following sequence.
x YES (or Y for some models) or NO (N) to indicate the last signal reception result, then to
Moves to
READY (R).
Second Hand indicates the operations the watch is currently performing.
The 2.
When the xx Second Hand is
pointed here:
READY (R) Watch is setting up for reception.
WORK (W) Reception is in progress.
YES (Y) Reception was completed successfully.
NO (N) Reception failed for some reason.
If signal reception is unstable, the x xx Second Hand may move between
WORK (W) and READY (R).
When the receive operation is successful, the watch adjusts the time
x
setting accordingly, and then resumes regular timekeeping. It does not
adjust the setting if the operation failed.
Note
To interrupt a receive operation and return to the Timekeeping Mode, press x
any button.
Position the watch as shown in the nearby illustration, x
with 12 o’clock pointed towards a window. Make sure
there are no metal objects nearby.
Signal reception normally is better at night.
x
The receive operation takes from two to seven minutes, x
but in some cases it can take as long as 14 minutes.
Take care that you do not perform any button operation
or move the watch during this time.
It means this:
E-11
E-13
E-15