Casio ANA (F3H-3) Operation Guide
MA1910-EA © 2017 CASIO COMPUTER CO., LTD.
Operation Guide ANA(F3H-3)
xBe sure to keep all user documentation handy for future reference.
xYour watch may differ somewhat from the one shown in the illustration.
Before Using the Watch for the First Time
xDepending on your watch model, there may be a spacer installed at the factory around the crown. If your watch has a spacer, you should remove the spacer before using the watch.
xAfter removing the spacer, use the procedures in “Crown Operations” and “To adjust the time setting” to set up the watch for use.
Click 2
Click 1
Crown
Spacer
Crown
To adjust the time setting
When the second hand is at 12 o’clock, pull |
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Take care that you set the |
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Crown out to Click 2. |
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correct AM or PM time. |
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When changing the time, |
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move the minute hand four |
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Rotate the Crown to change the time setting. |
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or five minutes past your |
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final setting, and then back it up to the setting you want.
Push the Crown back in on a time signal to resume timekeeping.
To change the day setting
Pull the Crown out to Click 1.
Rotate the Crown away from you to set the day.
Push the Crown back in.
Note
xThe day setting uses a 31-day month. Make adjustments for months of shorter lengths.
xAvoid changing the day setting between the hours of 9 p.m. and 1 a.m. Otherwise, the day may not change correctly at midnight.
Crown Operations |
Crown |
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Some water-resistant models (100 meters, 200 meters) have a screw-in crown. When you need to perform a crown operation, rotate it towards you to unscrew it. Then pull the
crown out. Avoid applying undue force when pulling. The watch loses its water resistance while the crown is unscrewed. After performing a crown operation, fully screw the crown back in.
If your watch has a rotary bezel...
You can rotate the bezel to align its 
mark with the minute hand. Then you will be able to tell how much time has elapsed since aligning the 
mark.
Loosen
Start
Elapsed time
Current
Specifications
Accuracy at normal temperature: ±20 seconds a month
Other: Low battery alert
Power Supply: Solar panel and one rechargeable battery Approximate battery operating time: 5 months
Solar Charging
A solar panel generates electrical power that charges a built-in (secondary) battery. The entire face is a solar panel, so power is generated when the face is exposed to light. Keep the watch exposed to light as much as possible.
Charging the Battery
When you are not wearing the watch, leave it where it is exposed to light. For stable operation, expose the watch to at least a half day of light per month.
When wearing the watch, try to keep your clothing from blocking its face (solar panel). Charging efficiency is reduced significantly even if the face is blocked only partially.
Caution!
xThe case of the watch may become quite hot when charging. Guard against burn injury after charging.
xAvoid charging in the following locations, and anywhere else where the watch may become very hot.
−On the dashboard of an automobile parked in the sun
−Close to an incandescent light source or other sources of heat
−Locations exposed to direct sunlight for long periods
Low Charge and Dead Battery Conditions
An alert operation is performed when the battery charge goes low.
Low Battery Alert
The second hand will jump at two-second intervals to alert you when the charge is low.
Regular Timekeeping |
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Low Battery Alert |
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Low charge |
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Charged |
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2-second jump |
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Charging Time |
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The times below are general guidelines for reference only. |
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Charging Time to Support Daily Use |
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Exposure Level (Brightness) |
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Approximate Charging Time |
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Outdoor sunlight (50,000 lux) |
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8 minutes |
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Sunlight through a window (10,000 lux) |
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30 minutes |
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Daylight through a window on an overcast day |
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48 minutes |
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(5,000 lux) |
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Indoor fluorescent lighting (500 lux) |
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8 hours |
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Charging Time to Recover from Dead Battery |
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Approximate |
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Exposure Level (Brightness) |
Charging Time to |
Approximate Time |
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1-second Hand |
to Full Charge |
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Movement |
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Outdoor sunlight (50,000 lux) |
3 hours |
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24 hours |
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Sunlight through a window (10,000 lux) |
11 hours |
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90 hours |
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Daylight through a window on an |
18 hours |
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144 hours |
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overcast day (5,000 lux) |
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Indoor fluorescent lighting (500 lux) |
172 hours |
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– – – |
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Note
x Actual charging time depends on environmental conditions.
Specifications are subject to change without notice.
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