Operation Guide 3063
To turn the hourly time signal on and off
1. In the Alarm Mode, use D to select the hourly time signal (:00).
2. Press Ato toggle it on and off.
• Turning on the hourly time signal displays the hourly time signal on indicator.
• The hourly time signal on indicator is displayed in all modes when the hourly time signal is turned on.
Hourly time signal on indicator
Illumination
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| The watch has an EL |
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| causes the entire display to glow for easy reading in the |
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| dark. The watch’s auto light switch illuminates the display |
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| automatically when you angle the watch towards your |
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| face. |
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| • The auto light switch must be turned on (indicated by |
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| the auto light switch indicator) for it to operate. |
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| • See “Illumination Precautions” for other important |
Auto light switch indicator | information. | |
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| To turn on illumination manually |
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| In any mode, press Bto illuminate the display for about |
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| one second. |
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| • The above operation turns on illumination regardless of |
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| the current auto light switch setting. |
About the Auto Light Switch
Turning on the auto light switch causes illumination to turn on whenever you position your wrist as described below in any mode. Note that this watch features a “Full Auto EL Light,” so the auto light switch operates only when available light is below a certain level. It does not illuminate the display under bright light.
Moving the watch to a position that is parallel to the ground and then tilting it towards you at more than 40 degrees causes illumination to turn on.
•Wear the watch on the outside of your wrist.
Parallel to | More than |
ground | 40° |
Warning!
•Always make sure you are in a safe place whenever you are reading the watch using the auto light switch. Be especially careful when running or engaged in any other activity that can result in accident or injury. Also take care that sudden illumination by the auto light switch does not startle or distract others around you.
•When you are wearing the watch, make sure that its auto light switch is turned off before riding on a bicycle, or operating a motorcycle or any other motor vehicle. Sudden and unintended operation of the auto light switch can create a distraction, which can result in a traffic accident and serious personal injury.
To turn the auto light switch on and off
In the Timekeeping Mode (except when a setting screen is on the display), hold down
Bfor about three seconds to toggle the auto light switch on (A.EL displayed) and off
(A.EL not displayed).
• The auto light switch indicator remains in all modes while the auto light switch is turned on.
Power Supply
This watch is equipped with a solar cell and a special rechargeable battery (secondary battery) that is charged by the electrical power produced by the solar cell. The illustration shown below shows how you should position the watch for charging.
Example: Orient the watch so its face | Solar cell |
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is pointing at a light source. |
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•The illustration shows how to position
a watch with a resin band.
• Note that charging efficiency drops when any part of the solar cell is blocked by clothing, etc.
•You should try to keep the watch outside of your sleeve as much as possible. Charging is reduced
significantly if the face is only partially covered.
Important!
•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 rechargeable battery power to run down. Make sure that the watch is exposed to bright light whenever possible.
•This watch uses a special rechargeable battery to store power produced by the solar cell, so regular battery replacement is not required. However, after very long use, the rechargeable battery may lose its ability to achieve a full charge. If you experience problems getting the special rechargeable battery to charge fully, contact your dealer or CASIO distributor about having it replaced.
•The special rechargeable (secondary) battery used by your watch is not intended to be removed or replaced by you. Use of a rechargeable battery other than the special one specified for this watch can damage the watch.
•The current time and all other settings return to their initial factory defaults whenever battery power drops to Level 5 and when you have the battery replaced.
•Turn on the watch’s Power Saving function and keep it in an area normally exposed to bright light when storing it for long periods. This helps to keep the rechargeable battery from going dead.
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Battery power indicator |
| llllll | Display, alarm, hourly time | ||
| l | l | signal, beeper, illumination | ||
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| 4 | |||
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| l | |||
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| l | l | and time calibration signal | |
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| lll | ||
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| (Charge Soon Alert) | reception disabled. | |
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•The low power indicator (L) flashes on the display in the Timekeeping Mode when battery is at Level 3.
•The low power indicator (L) at Level 3 and the flashing charge indicator (CHG) at Level 4 tell you that battery power is very low, and that exposure to bright light for charging is required as soon as possible.
•At Level 5, all functions are disabled and settings return to their initial factory defaults. Functions are enabled once again after the rechargeable battery is charged, but you need to set the time and date, after the battery reaches Level 4 (indicated by the flashing charge indicator (CHG)) from Level 5. You will not be able to configure any of the other settings until the battery reaches Level 3 (no charge indicator) after dropping to Level 5.
•Leaving the watch in direct sunlight or some other very strong light source can cause the battery power indicator to show a reading that is momentarily higher than the actual battery level. The correct battery power indicator should appear after a few minutes.
•If you use the illumination or alarms a number of times during a short period, all of the battery power indicators (L, M, H) will flash and the following operations will become disabled until battery power recovers.
Illumination Beeper tone
Time calibration signal reception
After some time, battery power will recover and the battery power indicators will stop flashing, which indicates that the above functions are enabled again.
Charging Precautions
Certain charging conditions can cause the watch to become very hot. Avoid leaving the watch in the areas described below whenever charging its rechargeable battery. Also note that allowing the watch to become very hot can cause its liquid crystal display to black out. The appearance of the LCD should become normal again when the watch returns to a lower temperature.
Warning!
Leaving the watch in bright light to charge its rechargeable battery 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.
•On the dashboard of a car parked in direct sunlight
•Too close to an incandescent lamp
•Under direct sunlight
Charging Guide
After a full charge, timekeeping remains enabled for up to about eight months.
•The following table shows the amount of time the watch needs to be exposed to light each day in order to generate enough power for normal daily operations.
Exposure Level (Brightness) | Approximate Exposure Time |
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Outdoor Sunlight (50,000 lux) | 5 minutes |
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Sunlight Through a Window (10,000 lux) | 24 minutes |
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Daylight Through a Window on a Cloudy Day | 48 minutes |
(5,000 lux) |
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Indoor Fluorescent Lighting (500 lux) | 8 hours |
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•Since these are the specs, we can include all the technical details.
•Display on 18 hours per day, sleep state 6 hours per day
•1 illumination operation (1.5 seconds) per day
•10 seconds of alarm operation per day
•10 minutes of signal reception per day
•Stable operation is promoted by frequent exposure to light.
Recovery Times
The table below shows the amount exposure that is required to take the battery from one level to the next.
Exposure Level | Approximate Exposure Time |
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(Brightness) |
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Level 5 | Level 4 |
| Level 3 |
| Level 2 |
| Level 1 | |||||||
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Outdoor Sunlight |
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| 2 hours |
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| 42 hours |
| 12 hours | |||||
(50,000 lux) |
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Sunlight Through a Window |
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| 6 hours |
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| 158 hours |
| 44 hours | |||||
(10,000 lux) |
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Daylight Through a Window |
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| 11 hours |
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| 256 hours |
| 71 hours | |||||
on a Cloudy Day (5,000 lux) |
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Indoor Fluorescent Lighting |
| 119 hours |
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(500 lux) |
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•The above exposure time values are all for reference only. Actual required exposure times depend on lighting conditions.
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