Operation Guide 5208
Charging Guide
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 |
Outdoor Sunlight (50,000 lux) | 8 minutes |
Sunlight Through a Window (10,000 lux) | 30 minutes |
Daylight Through a Window on a Cloudy Day (5,000 lux) | 48 minutes |
Indoor Fluorescent Lighting (500 lux) | 8 hours |
•For details about the battery operating time and daily operating conditions, see the “Power Supply” section of the Specifications (page
•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) | Level 5 | Level 4 | Level 3 | Level 2 | Level 1 | |||
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| ▲ |
| ▲ |
| ▲ |
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Outdoor Sunlight |
| 3 hours |
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| 35 hours | 10 hours | ||
(50,000 lux) |
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Sunlight Through a |
| 10 hours |
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| 133 hours | 36 hours | ||
Window (10,000 lux) |
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Daylight Through a |
| 16 hours |
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| 216 hours | 58 hours | ||
Window on a Cloudy |
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Day (5,000 lux) |
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Indoor Fluorescent |
| 194 hours |
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| - - - - - - - - | - - - - - - - - | ||
Lighting (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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Adjusting Home Positions
Strong magnetism or impact can cause the hands of the watch to be off. If this happens, perform the applicable home position adjustment procedures in this section.
•Hand home position adjustment is not required if the analog time and digital time are the same in the Timekeeping Mode.
To adjust home positions
1.In the Timekeeping Mode, hold down Afor about five seconds. You can release the button after “H.SET” appears on the display.
•Though “ADJ” will appear on the display after about two seconds, do not release the button yet. Keep it depressed until “H.SET” appears.
Correct hour and
minute hand positions
•The hour and minute hands should move to 12 o’clock (their home position), and “0:00” will flash on the display.
•If the hour and minute hands are not at 12 o’clock, use D(+) and
•Holding down either button will cause the hands to move at high speed. Once started,
2. After everything is the way you want, press A to return to the Timekeeping Mode.
• After performing home position adjustment, enter the Timekeeping Mode and check to make sure that the analog hands and the digital display indicate the same time. If they do not, perform home position adjustment again.
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Reference
This section contains more detailed and technical information about watch operation. It also contains important precautions and notes about the various features and functions of this watch.
Button Operation Tone
The button operation tone sounds any time you press one of the watch’s buttons. You can turn the button operation tone on or off as desired.
•Even if you turn off the button operation tone, alarms, the Hourly Time Signal, and other beepers all operate normally.
To turn the button operation tone on and off
1.In the Timekeeping Mode, hold down Afor about two seconds, until “ADJ” appears on the display.
• Your current Home City code will be flashing on the screen.
2.Press Cnine times until the current button operation
tone setting (
or 
) appears.
3.Press Dto toggle the setting between
(tone on)
and 
(tone off).
4.Press A to exit the setting screen.
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Power Saving Function
The Power Saving function enters a sleep state automatically whenever the watch is left in an area for a certain period where it is dark (except if the watch is in the Stopwatch or Timer mode). The table below shows how watch functions are affected by the Power Saving function.
Elapsed Time in Dark | Display | Operation |
60 to 70 minutes | Blank | All functions enabled, except for the display |
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6 or 7 days |
| •Beeper tone, illumination, and display disabled |
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| •Analog timekeeping stopped at 12 o’clock |
•Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.
•The watch will not enter the sleep state between 6:00 AM and 9:59 PM. If the watch is already in the sleep state when 6:00 AM arrives, however, it will remain in the sleep state.
To recover from the sleep state
Perform any one of the following operations.
•Move the watch to a
•Press any button.
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Auto Return Features
•If you leave the watch in the Alarm Mode, or with the battery level indicator displayed for two or three minutes without performing any operation, it automatically returns to the Timekeeping Mode.
•If you leave the watch with a flashing setting on the display for two or three minutes without performing any operation, the watch automatically exits the setting screen.
Scrolling
The B and D buttons are used in various modes and setting screens to scroll through data on the display. In most cases, holding down these buttons during a scroll operation scrolls through the data at high speed.
Initial Screens
When you enter the World Time Mode or Alarm Mode, the data you were viewing when you last exited the mode appears first.
Timekeeping
•Resetting the seconds to 00 while the current count is in the range of 30 to 59 causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are reset to 00 without changing the minutes.
•The year can be set in the range of 2000 to 2099.
•The watch’s
•The current time for all city codes in the Timekeeping Mode and World Time Mode is calculated in accordance with the Coordinated Universal Time (UTC) for each city, based on your Home City time setting.
Illumination Precautions
•Illumination may be hard to see when viewed under direct sunlight.
•Illumination automatically dims if it is lit and an alarm or time up alarm sounds.
•Frequent use of illumination runs down the battery.