Operation Guide 5105
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) | 8 minutes |
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Sunlight Through a Window (10,000 lux) | 30 minutes |
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Daylight Through a Window on a Cloudy Day (5,000 lux) | 48 minutes |
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Indoor Fluorescent Lighting (500 lux) | 8 hours |
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•For details about the battery operating time and daily operating conditions, see the “Power Supply” section of the Specifications.
•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 |
| 3 hours |
| 26 hours | 7 hours |
(50,000 lux) |
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Sunlight Through a |
| 8 hours |
| 98 hours | 26 hours |
Window (10,000 lux) |
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Daylight Through a |
| 12 hours |
| 158 hours | 43 hours |
Window on a Cloudy |
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Day (5,000 lux) |
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Indoor Fluorescent |
| 141 hours |
| - - - - - - - - | - - - - - - - - |
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.
Hand Home Position Correction
The hands of the watch can be thrown off by exposure to strong magnetism or impact. If that happens, check if the home positions of the hands are correct and adjust the home positions as required.
To adjust the home positions
To turn Power Saving on and off
1.In the Timekeeping Mode, hold down A for about five seconds until the left dial hand points to T1 and the city
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| code flashes on the upper display. This is the setting |
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| mode. |
ll lll | 2. Press Cnine times until PS appears in the upper | ||
display and a flashing on or OFF appears in the lower | |||
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| l | display. This is the Power Saving on/off screen. |
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l l | l | 3. Press Dto toggle Power Saving on (on) and off (OFF). | |
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| 4. Press Atwice to exit the setting mode. |
On/Off status
Auto Return Features
•If you leave the watch with a flashing setting on the display for two or three minutes without performing any operation, the watch will exit the setting mode automatically.
•The watch will return to the Timekeeping Mode automatically if you do not perform any operation for two or three minutes in the Alarm Mode.
High-Speed Movement
The Dand Bbuttons are used to change the hand setting in various setting modes. In most cases, holding down these buttons will start
Initial Screens
When you enter the World Time Mode or Alarm Mode, the data you were viewing when you last exited the mode will appear 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 turns off automatically whenever an alarm sounds.
•Frequent use of illumination runs down the battery.
Auto light switch precautions
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Correct dial hand
positions
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1.In the Timekeeping Mode, hold down Dfor about three seconds, until
•The dial hands are in their correct home positions
when the left dial hand moves to C (CHG) and the right dial hand moves to 12. If they don’t, use Bto adjust the left dial hand position and Dto adjust the right dial hand position.
2.After confirming that both dial hands are in their correct home positions, press C.
•This will change to hour hand and minute hand home position manual correction.
•The hour and minute hands are in their correct home
positions if they are at 12 o’clock. If they are not, use D(+) and B
•Pressing Chere will return to the setting at the beginning of step 2.
3.After everything is the way you want, press Ato return to the Timekeeping Mode.
The auto light switch is turned off automatically whenever battery power is at Level 4 |
(CHG). |
• Avoid wearing the watch on the inside of your wrist. Doing so causes the auto light |
switch to operate when it is not needed, which shortens battery life. If you want to |
wear the watch on the inside of your wrist, turn off the auto light switch feature. |
•Illumination may not turn on if the face of the watch is
More than 15 degrees | more than 15 degrees above or below parallel. Make | |
too high | ||
sure that the back of your hand is parallel to the ground. | ||
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| • Illumination turns off in about one second, even if you | |
| keep the watch pointed towards your face. | |
| • Static electricity or magnetic force can interfere with | |
| proper operation of the auto light switch. If illumination | |
| does not turn on, try moving the watch back to the | |
| starting position (parallel with the ground) and then tilt it | |
| back toward you again. If this does not work, drop your | |
| arm all the way down so it hangs at your side, and then | |
| bring it back up again. |
• Under certain conditions, illumination may not turn on until about one second after you turn the face of the watch towards you. This does not necessarily indicate
Correct hour and
minute hand
positions
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.
Power Saving Function
When turned on, 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. The table below shows how watch functions are affected by the Power Saving function.
Elapsed Time | Hands and Display | Operation |
in Dark |
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60 to 70 minutes | Left dial hand: PS; Right dial | All functions enabled, except |
| hand: “12”; Other hands: | for displays |
| Normal; Display: Blank |
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6 or 7 days | Left dial hand: PS; Other hands: | Beeper tone, illumination, and |
| Stopped at 12 o’clock; | display disabled. |
| Display: Blank |
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•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.
•Angle the watch towards your face for reading.
malfunction of the auto light switch.
• You may notice a very faint clicking sound coming from the watch when it is shaken back and forth. This sound is caused by mechanical operation of the auto light switch, and does not indicate a problem with the watch.
Specifications
Accuracy at normal temperature: ± 15 seconds a month
Digital Timekeeping: Hour, minutes, seconds, p.m. (P), month, day, day of the week Time format:
Calendar system: Full
Other: Home City code (can be assigned one of 48 city codes); Standard Time / Daylight Saving Time (summer time); Simultaneous Home Time/Dual Time indication
Analog Timekeeping: Hour, minutes (hand moves every 10 seconds)
World Time: 48 cities (29 time zones)
Other: Daylight Saving Time/Standard Time; Home City/World Time City Swapping
Stopwatch:
Measuring unit: 1/100 second
Measuring capacity: 23:59' 59.99''
Measuring modes: Elapsed time, split time, two finishes
Countdown Timer: Measuring unit: 1 second
Input range: 1 minute to 60 minutes
Other:
Alarms: Four
Illumination: LED
Other: Power Saving
Power Supply: Solar cell and one rechargeable battery
Approximate battery operating time: 8 months (from full charge to Level 5 (CHG)) under the following conditions:
•Watch not exposed to light
•Internal timekeeping
•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
Frequent use of illumination runs down the battery. Particular care is required when using the auto light switch.
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