User`s guide | Casio 5251 Watch User Manual

MA1112-EA
Operation Guide 5251 (OC)
ENGLISH
Congratulations upon your selection of this CASIO watch.
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.
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.
E-1
About this manual
B
About the face
Operations are performed using the watch’s crown and the A button.
@ +
&
'
(
Hand Functions
z
x
c
v
Hour Hand
Second Hand
Minute Hand
Day Indicator
This User’s Guide uses numbers shown above to identify watch hands and
indicators.
>
)
The following explains the meanings of the markings on the watch’s face.
1. Y (YES)/N (NO): Time calibration signal reception result
Y (YES): Successful
N (NO): Unsuccessful
x See “To check the result of the latest receive operation” (page E-21).
2. RC: Receive in progress
x See “To perform manual receive” (page E-20).
3. A (AM)/P (PM): AM and PM indications when setting the time
x See “To set the time manually” (page E-24).
4. CN (HKG, HONG KONG)/OFF/JP (TYO, TOKYO):
Signal reception location
x See “Radio Controlled Atomic Timekeeping” (page E-16).
Important!
x The A button is designed to protect against accidental pressing. Use a thin
pointed object to press the depression of the button to operate it.
x In the illustrations in this manual, the A button is emphasized for ease of
understanding.
E-2
E-3
High-speed Forward and Reverse Movement
Crown Operations
The crown can be pulled out to one of two (click) positions. Never apply undue force when pulling out the
crown.
Important!
x When pulling out the crown, avoid using undue force, which creates the risk of personal injury to your
fingers and fingernails, and of watch malfunction.
While the crown is pulled out, rotating it more than one full turn either way will
cause the hands or Day indicator to start to move at high speed. High-speed
movement will continue even if you release the crown.
High-speed Cancel
First click
Rotate the crown in the reverse direction of the movement or press the A
button.
For selecting the location setting
Second click
Note
x Leaving the crown pulled out for more than two minutes without performing any operation will
automatically cause the setting operation to become disabled. If this happens, press the crown back in
and then pull it out again to configure settings.
x High-speed movement can be used when setting the current time (page E-24) and when performing
home position adjustment (page E-29).
For configuring time, date and other settings
Note
x When you push the crown back in from the first click, the x Second Hand will perform movement that
indicates whether the watch’s battery requires charging before resuming regular timekeeping. See
“Charging Guide” (page E-12).
E-5
E-4
Things to check before using the watch
2. Check the current location settings.
Use the procedure under “Configuring Time and Date Settings” (page E-22) to configure your location
settings.
1. Observe the movement of the x Second Hand.
Is the x Second Hand moving smoothly at one-second intervals?
NO
YES
x Second Hand moving in the following pattern.
1 second
1 second
The watch is charged. For details about charging,
see “Charging the Watch” (page E-10).
NEXT
2 seconds
Go to step 2.
NO
YES
Is the x Second Hand moving at
two-second intervals or is it stopped
completely?
Important!
x Proper time calibration signal reception and time settings depend on correct location setting. Make
sure you configure these settings correctly.
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-18).
x To set the time manually
See “Configuring Time and Date Settings Manually” (page E-24).
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-16).
YES
Battery is low.
Battery is starting to go low.
Charge the watch by placing it in a location where it is exposed to light. For details, see “Charging the
Watch” (page E-10).
E-6
E-7
Operation Guide 5251 (OC)
E-29 Adjusting the Home Positions
Contents
E-2
About this manual
E-3
About the face
E-32 Troubleshooting
E-36 Specifications
E-4
Crown Operations
E-6
Things to check before using the watch
E-10 Charging the Watch
E-13 To use the charging guide
E-15 To recover from the sleep state
E-16 Radio Controlled Atomic Timekeeping
E-18 To get ready for a receive operation
E-20 To perform manual receive
E-21 To check the result of the latest receive operation
E-22 Configuring Time and Date Settings
E-23 To check the current location setting
E-23 To change the location setting
E-24 To set the time manually
E-26 To set the date manually
E-8
E-9
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
When wearing the watch,
makes sure that its face is
not blocked from light by the
sleeve of your clothing.
x The watch may enter a sleep
state (page E-14) if its face is
blocked by your sleeve even
only partially.
Whenever you are not wearing
the watch, be sure to leave it in
a location where it is exposed
to light.
x Best charging performance
is achieved by exposing
the watch to light that is as
strong as possible.
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
B
You can get an idea of the watch’s power level by observing the movement of
the x Second Hand in the regular timekeeping.
+
Level
Hand Movement
Charge
1
Normal.
Battery is charged.
2
x Second Hand moves in the following
pattern.
1 second
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
x Too close to an incandescent lamp
x Under direct sunlight
@
Battery is starting to go low.
2 seconds
3
x Second Hand moves at two-second
intervals.
v Day Indicator changes to 1 (home
position).
Battery is low.
4
x Second Hand stopped.
z Hour Hand and c Minute Hand
stopped at 12 o’clock.
Battery is very low.
>
Movement indicates the
current charge level.
1 second
E-11
E-10
x When power drops to Level 4, all functions will be disabled but the watch will continue to keep time
internally for about one week. If you recharge the battery sufficiently during this period, the analog
hands will move automatically to the correct setting and regular timekeeping will resume. After one
week, all settings (including timekeeping) will be cleared. Recharging the battery will reset all settings
to their initial factory defaults.
To use the charging guide
1. Pull the crown out to the first click. The x Second Hand will move to the currently selected location
setting. Next, push the crown back in.
x For about one second, the x Second Hand will perform movement that indicates whether the watch’s
battery requires charging.
Charging Guide
The charging guide causes the x Second Hand to perform movement that gives you a rough idea of
whether the watch needs to be exposed to light in order to charge the battery.
Battery is charged.
Charge is very low.
Leave the watch in bright
light for long time until
charged.
Charge is low.
Consider leaving the watch in
light for charging.
Charge is low.
Leave the watch in light for charging.
x The current charging requirement is indicated whenever you push the crown back in from the first
click.
x Failure to expose the watch to light when charging is required will cause the charge to be reduced
even further.
x The charging guide is based on a calculated value (not the actual battery charge). Because of this,
the battery charge may go low even if the charging guide indicates that immediate charging is not
required. If this happens, expose the watch to light as soon as possible to charge the battery.
E-12
E-13
Charging Times
Level Change *2
Exposure Level (Brightness)
Daily Operation
*1
Level 4
Level 3
Level 2
Level 1
Outdoor sunlight (50,000 lux)
8 minutes
2 hours
Window sunlight (10,000 lux)
30 minutes
4 hours
93 hours
Window sunlight on cloudy day (5,000 lux)
48 minutes
6 hours
151 hours
8 hours
59 hours
–––
Indoor fluorescent lighting (500 lux)
25 hours
* 1 Approximate exposure each day to generate power for normal daily operation.
* 2 Approximate exposure to take power up one level.
x 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
the Specifications (page E-36).
How Power Saving works
The watch will enter the sleep state if it is left in a dark location for about one week.
x In the sleep state:
− All hands stop at 12 o’clock.
− Auto Receive is disabled.
− Internal timekeeping continues to operate normally.
x The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch is already in a sleep
state when 6:00 AM arrives, however, it will remain in the sleep state.
To recover from the sleep state
Move the watch to a well-lit area, press the A button, or pull out the crown to the first click.
x It can take up to eight minutes for the watch to resume normal operation after recovering from the sleep
state. Do not perform any button operations during that time.
Power Saving
A Power Saving feature causes the watch to enter a sleep state automatically whenever it is left for a
certain period in an area where it is dark.
E-14
E-15
Operation Guide 5251 (OC)
Radio Controlled Atomic Timekeeping
Approximate Reception Ranges
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 “Configuring Time and Date Settings Manually” (page E-24) for more
information.
This section explains how the watch updates its time settings when the city name selected as the current
location is in Japan or China, and is one that supports time calibration signal reception.
If your location setting is this:
The watch can receive the signal from the transmitter located here:
CN (HKG, HONG KONG)
Shangqiu City (China)
JP (TYO, TOKYO)
Fukushima (Japan), Fukuoka/Saga (Japan)
OFF
No signal received
Japanese Signal
500 kilometers
Chinese Signal
Fukushima
500 kilometers
Changchun
Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong
Fukuoka/Saga
1,500 kilometers
1,000 kilometers
E-16
E-17
x Even when the watch is within range of a transmitter, signal reception may be impossible due to the
effects of geographic contours, structures, weather, the time of year, the time of day, radio interference,
etc. The signal becomes weaker at distances of approximately 500 kilometers, which means that the
influence of the above conditions becomes even greater.
x Signal reception may not be possible at the distances noted below during certain times of the year or
day. Radio interference may also cause problems with reception.
− Fukushima or Fukuoka/Saga (Japan) transmitter: 500 kilometers (310 miles)
− Shangqiu (China) transmitter: 500 kilometers (310 miles)
x As of December 2010, China does not use Daylight Saving Time (DST). If China does go to the
Daylight Saving Time system in the future, some functions of this watch may no longer operate
correctly.
x Using this watch in a country covered by a time calibration that is different from the countries it
supports may result in incorrect time indication due to local application of summer time, etc.
To get ready for a receive operation
1. Place the watch in a location where signal reception is good.
x Position the watch as shown in the nearby illustration, with the part
of the dial between 7 and 8 o’clock pointed towards a window. Make
sure there are no metal objects nearby.
7 to 8 o’clock
x Signal reception normally is better at night.
x The receive operation takes from three to eight minutes, but in some
cases it can take as long as 18 minutes. Take care that you do not
perform any button operation or move the watch during this time.
x Signal reception may be difficult or even impossible under the conditions described below.
Inside or among
buildings
Inside a vehicle
Near household
appliances,
office
equipment, or a
mobile phone
Near a
construction
site, airport, or
other sources of
electrical noise
Near hightension power
lines
Among
or behind
mountains
2. What you should do next depends on whether you are using Auto Receive or Manual Receive.
x Auto Receive: Leave the watch over night in the location you selected in step 1. See “Auto Receive”
below for details.
x Manual Receive: Perform the operation under “To perform manual receive” on page E-20.
Auto Receive
x With Auto Receive, the watch performs the receive operation each day automatically. Reception times
depend on the location settings: 2:00, 3:00, and 4:00 a.m. for JP (TYO, TOKYO), and 1:00, 2:00, and
3:00 a.m. for CN (HKG, HONG KONG). When any receive operation is successful, none of the other
receive operations for that day are performed.
x When a calibration time is reached, the watch will perform the receive operation. The receive operation
is not performed if a calibration time is reached while you are configuring settings.
E-18
E-19
To perform manual receive
1. Hold down A for at least two seconds.
@
x The x Second Hand will first indicate the last receive results as either Y
(YES) or N (NO), and then move to RC (Receive in progress) to indicate
that signal reception has started.
2. The watch’s time setting is adjusted automatically whenever a receive
operation is successful.
Note
x It can take as long as 30 seconds for signal reception conditions to
stabilize.
x If you want to stop a receive operation at any time, press A.
x If reception fails for some reason, check the surrounding area and eliminate
possible causes for failure and then try again. See “To get ready for a
receive operation” (page E-18).
To check the result of the latest receive operation
1. Press A.
@
x The x Second Hand will indicate the result of the last receive operation.
Y (YES)
Receive successful
N (NO)
Receive failed
2. Press A to return to regular timekeeping. Regular timekeeping also will
resume if no operation is performed for about five seconds.
Note
x The x Second Hand will indicate N (NO) if you have adjusted the time
setting manually since the latest receive operation.
Radio-controlled Atomic Timekeeping Precautions
x Strong electrostatic charge can result in the wrong time setting.
x Even if a receive operation is successful, certain conditions can cause the time setting to be off by up
to one second.
x The watch is designed to update the date automatically for the period January 1, 2000 to December
31, 2099. Updating of the date by signal reception will no longer be performed starting from January
1, 2100.
x If you are in an area where signal reception is not possible, the watch keeps time with the precision
noted in “Specifications” (page E-36).
x The receive operation is disabled under any of the following conditions.
− While the battery charge level is at Level 3 or lower (page E-11)
− While the watch is in the function sleep state (power saving, page E-14)
E-20
E-21
Configuring Time and Date Settings
Normally time and date settings are configured automatically when a time calibration signal is received in
accordance with your location setting.
Important!
x Whenever you are in an area where a signal cannot be received or if your location setting does not
support signal reception, you will need to configure time settings manually. See “Configuring Time and
Date Settings Manually” (page E-24).
To check the current location setting
1. Pull the crown out to the first click.
x The x Second Hand will move to the currently selected location.
2. Push the crown back in.
x The x Second Hand will perform movement that indicates
whether the watch’s battery requires charging. After that, regular
timekeeping will resume. See “To use the charging guide” (page
E-13).
Location Setting
Select one of the location settings shown below in accordance with your current location.
In China
CN (HKG, HONG KONG)
In Japan
JP (TYO, TOKYO)
Any other location
OFF (Receive off)
To change the location setting
1. Pull out the crown to the first click.
x The x Second Hand will move to the currently selected location.
Setting the wrong location can make reception impossible or may result in incorrect time settings. See
“Radio Controlled Atomic Timekeeping” (page E-16).
Important!
x When using this watch in China, set CN (HKG, HONG KONG) as the location.
E-22
2. Rotate the crown to move the x Second Hand to the location
setting you want to use.
Important!
x Leaving the crown pulled out for more than two minutes without
performing any operation will automatically cause setting operation
to become disabled. If this happens, press the crown back in and
then pull it out again to configure settings.
E-23
Operation Guide 5251 (OC)
3. Push the crown back in.
x The x Second Hand will perform movement that indicates whether the watch’s battery requires
charging. After that, regular timekeeping will resume. See “To use the charging guide” (page E-13).
Configuring Time and Date Settings Manually
2. While the hour and minutes setting is selected, rotate the crown to change the current time setting.
Note
x A high-speed movement feature (one hour maximum) is available when setting the time. See “Crown
Operations” (page E-4).
You should configure time and date settings manually when you are in an area where time calibration
signal reception is not possible for some reason.
3. After the time setting is the way you want, press A change to the AM/PM setting.
x The x Second Hand will move to A (AM) or P (PM).
Important!
x It is recommended that you allow the watch to make time and date adjustments automatically when in
an area where the time calibration signal is receivable.
4. Rotate the crown to move the x Second Hand to the AM/PM setting you want.
x If you want to continue on to the date setting, press A and then perform the procedure starting from
step 3 under “To set the date manually” (page E-26).
To set the time manually
5. At the top of a minute (based on the time signal on the radio, TV, etc.), push the crown back in to
restart timekeeping.
x The x Second Hand will restart timekeeping from 0 seconds (12 o’clock).
1. Pull out the crown to the second click.
x The x Second Hand will move to A (AM) or P (PM) in
accordance with the current time.
x Use A to cycle through the available settings in the
sequence shown below.
@
Hour and minutes
A
AM/PM
A
Day
A
A
Month
Year (tens digit)
Year (ones digit)
A
A
E-24
E-25
Dec
To set the date manually
Nov
1. Pull the crown out to the second click.
x The x Second Hand will move to A (AM) or P (PM) in
accordance with the current time.
x Use A to cycle through the available settings in the
sequence shown below.
@
Hour and minutes
A
AM/PM
A
Mar
Sep
A
Aug
4. After the day setting is the way you want, press A.
x The x Second Hand will move to the current month
setting.
5. Rotate the crown to move the x Second Hand to the
month you want.
Apr
Jul
Month
Year (tens digit)
A
Feb
Day
A
Year (ones digit)
Jan
Oct
May
@
Jun
A
>
@
>
00
10
2. Press A twice.
x The x Second Hand will align with the bottom of the v Day
Indicator.
3. Rotate the crown to change the day setting.
Important!
x Note that you can change the day setting only by advancing
to the next day. You cannot go back to a previous day. To
change from 30 to 29, for example, you must change the
setting in the sequence 30
31
1 ...
29.
@
20
30
6. After the setting is the way you want, press A.
x The x Second Hand will move to the tens digit
setting of the current year.
7. Rotate the crown to move the x Second Hand to the
year tens digit setting you want.
90
80
40
70
50
60
Year tens Digit
E-26
E-27
@
0
1
2
3
9
8
4
7
5
8. After the tens digit setting is the way you want, press
A.
x The x Second Hand will move to the ones digit of the
current year setting.
9. Rotate the crown to move the x Second Hand to the
year ones digit setting you want.
Note
x If you want to continue on to the time setting, press A
and then perform the procedure starting from step 2
under “To set the time manually” (page E-24).
6
Year ones Digit
Adjusting the Home Positions
Strong magnetism or impact can cause the hands and/or day of the watch to be off, even if the watch is
able to perform the calibration signal receive operation. The watch automatically detects and adjusts the
position of the x Second Hand as required.
Note, however, that the watch does not automatically correct the positions of the z Hour Hand, c Minute
Hand, or v Day Indicator. You need to correct the positions of these manually.
Adjusting Home Positions Manually
Important!
x You do not need to perform the procedure in this section if the watch is indicating the hour, minute, and
day normally.
B
@ +
10. At the top of a minute (based on the time signal on the radio, TV, etc.), push the crown back in to
restart timekeeping.
x The x Second Hand will restart timekeeping from 0 seconds (12 o’clock).
Note
x The watch automatically makes adjustments in the day setting to account for different length months
and leap year.
1. Pull the crown out to the first click.
2. Hold down A for at least five seconds until the x Second Hand moves to
12 o’clock.
x The c Minute Hand and x Second Hand should move to their correct
home positions (12 o’clock) when you release A. If they do, advance to
step 5.
3. What you should do next depends on how much the hand positions are off,
as described below.
x Off within ±15 minutes 00 seconds: Perform steps 4, 5, and 6 of this
procedure.
x Off by more than ±15 minutes 00 seconds: Perform steps 7, 8, 9, and 10
of this procedure.
E-28
E-29
Hands off within ±15 minutes 00 seconds
4. Rotate the crown to move the x Second Hand and c Minute Hand to their correct home positions
(12 o’clock).
x A high-speed movement feature (15 minutes maximum) is available when adjusting the home
positions of the hands. See “Crown Operations” (page E-4).
>
5. Press A and check the v Day Indicator.
x The v Day Indicator should show 1 and the x Second Hand
should align with the bottom of the v Day Indicator. This can
take up to 90 seconds.
x If the 1 is not in the center of the v Day Indicator, rotate the
crown to center it. A high-speed movement feature (one month
maximum) is available when adjusting the home position of the
v Day Indicator. See “Crown Operations” (page E-4).
@
6. Push the crown back in.
x This exits home position adjustment and returns to regular timekeeping. Note that it can take up to
about 10 minutes before the watch returns to regular timekeeping.
x This completes home position adjustment when the hands are off within ±15 minutes 00 seconds.
E-30
Hands off by more than ±15 minutes 00 seconds
In this case, check the position of the v Day Indicator first.
7. Press A and check the v Day Indicator.
x The v Day Indicator should show 1 and the x Second Hand should align with the bottom of the
v Day Indicator. This can take up to 90 seconds.
x If the 1 is not in the center of the v Day Indicator, rotate the crown to center it. A high-speed
movement feature (one month maximum) is available when adjusting the home position of the v Day
Indicator.
8. Press A.
x The z Hour Hand, c Minute Hand and x Second Hand should move to their correct home positions
(12 o’clock). This can take up to about 10 minutes.
9. Rotate the crown to adjust the positions of the hands.
x A high-speed forward movement feature (12 hours maximum) and a high-speed backward
movement feature (one hour maximum) are available when adjusting the positions of the hands. See
“Crown Operations” (page E-4).
10. Push the crown back in.
x This exits home position adjustment and returns to regular timekeeping. Note that it can take up to
about 10 minutes before the watch returns to regular timekeeping.
Note
x You can stop hand adjustment at any time by pushing the crown back in. This will return to regular
timekeeping with the hands at positions reflecting any changes you made up to that point.
E-31
Operation Guide 5251 (OC)
Troubleshooting
Hand Movement and Position
■ The x Second Hand is moving in the pattern: 1 second
1 second
2 seconds.
The battery charge is starting to go low. Expose the watch to light to charge it. See “Charging the Watch”
(page E-10).
■ The x Second Hand is moving at two-second intervals.
■ All of the watch’s hands are stopped at 12 o’clock, and the A button and crown do not do
anything.
The battery charge may be low. Expose the watch to light until the x Second Hand starts moving
normally, at one-second intervals (page E-11).
■ Hand movement is stopped.
The watch may have been exposed to magnetism, which will cause the hands to stop at their current
positions. Pull the crown out to the first click or press a button to restart hand movement. If the indicated
time is not correct, perform home position adjustment. See “Adjusting Home Positions Manually” (page
E-29).
■ The current time setting is off by hours.
Your location setting may be wrong. Check your location setting and correct it, if necessary (page E-22).
■ The hands and/or day indications are off.
This could indicate that the watch has been exposed to magnetism or strong impact, which has caused
problems with proper hand and day alignment. Adjust the watch’s hand and day home position alignment
(page E-29).
■ The hands of the watch suddenly start moving at high speed, even when I do not perform any
operation.
This could be due to any one of the following causes. In all cases, the hand movement does not indicate
malfunction, and should stop shortly.
x The watch is recovering from a sleep state (page E-15).
x The time setting is being adjusted following a successful auto time calibration signal receive operation
(page E-16).
■ Nothing happens when I rotate the crown.
Leaving the crown pulled out for more than two minutes without performing any operation will
automatically cause the setting operation to become disabled. If this happens, press the crown back in
and then pull it out again to configure settings. See “Crown Operations” (page E-4).
Charging
■ The watch does not resume operation after I expose it to light.
This can happen after the battery charge level drops to Level 4 (page E-11). Continue exposing the watch
to light until the x Second Hand starts moving normally (at one-second intervals).
Time Calibration Signal
The information in this section applies only when CN (HKG, HONG KONG), or JP (TYO, TOKYO) is
selected as the current location.
E-32
E-33
■ The x Second Hand indicates N (NO) when I check the result of the latest receive operation.
■ Signal reception is being performed successfully, but the time is wrong.
Possible Cause
Remedy
Page
x You are wearing or moving the watch, or
performing a button operation during the signal
receive operation.
x The watch is in an area with poor reception
conditions.
Keep the watch in an area where reception
conditions are good while the signal receive
operation is being performed.
E-18
You are in an area where signal reception is not
possible for some reason.
See “Approximate Reception Ranges”.
E-17
The calibration signal is not being transmitted for
some reason.
x Check the website of the organization that
maintains the time calibration signal in your area
for information about its down times.
x Try again later.
Possible Cause
Remedy
Page
Your location setting is wrong.
Check your location setting and correct it, if
necessary.
E-22
The watch may have been exposed to magnetism
or strong impact, which has caused problems with
proper hand alignment.
Adjust the watch’s hand home positions.
E-29
—
■ The current time setting changes after I set it manually.
You may have the watch configured for Auto Receive of the time calibration signal (page E-19), which will
cause the time to be adjusted automatically according to your currently selected location. If this results in
the wrong time setting, check your location setting and correct it, if necessary (page E-22).
■ Auto Receive is not performed or I cannot perform Manual Receive.
Possible Cause
Remedy
Page
Your location setting is wrong.
Check your location setting and correct it, if
necessary.
E-22
There is not enough power for signal reception.
Expose the watch to light to charge it.
E-10
E-34
Specifications
Accuracy at normal temperature: ± 15 seconds a month (with no signal calibration)
Timekeeping: Hour, minutes, seconds, day
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Time Calibration Signal Reception: Auto receive up to three times a day (Remaining auto receives
cancelled as soon as one is successful); Manual receive
Receivable Time Calibration Signals:
Fukushima, Japan (Call Sign: JJY, Frequency: 40.0 kHz); Fukuoka/Saga, Japan (Call
Sign: JJY, Frequency: 60.0 kHz); Shangqiu City, Henan Province, China (Call Sign: BPC,
Frequency: 68.5 kHz)
Other: Power Saving; Auto second hand home position correction
Power Supply: Solar panel and one rechargeable battery
Approximate battery operating time: 5 months (no exposure to light after a full charge; one signal
reception of approximately 4 minutes per day)
E-36
E-35
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