Operation Guide 5117
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 |
|
|
60 to 70 minutes | Left dial hand: PS; Stopwatch | All functions enabled, except |
| hand: “60”; Other hands: | for displays |
| Normal; Display: Blank |
|
6 or 7 days | Left dial hand: PS; Other hands: | Auto receive, beeper tone, |
| Stopped at 12 o’clock; | illumination, and display |
| Display: Blank | disabled. |
•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.
To turn Power Saving on and off
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| 1. In the Timekeeping Mode, hold down Afor about five | |
|
| seconds until the left dial hand points to T1 and the city | |
|
| code flashes on the upper display. This is the setting | |
|
| screen. | |
ll lll | 2. Press Cnine times until the Power Saving on/off | ||
screen appears. | |||
l | l |
|
|
l | 3. Press Dto toggle Power Saving on ( ) and off | ||
l | l | ||
ll ll |
| ( | ). |
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| ||
|
| 4. Press Atwice to exit the setting screen. | |
On/Off status |
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| |
Radio-controlled Atomic Timekeeping Precautions
•Strong electrostatic charge can cause the time setting to be thrown off.
•The time calibration signal bounces off the ionosphere. Because of this, such factors as changes in the reflectivity of the ionosphere, as well as movement of the ionosphere to higher altitudes due to seasonal atmospheric changes or the time of day may change the reception range of the signal and make reception temporarily impossible.
•Even if the time calibration signal is received properly, certain conditions can cause the time setting to be off by up to one second.
•The current time setting in accordance with the time calibration signal takes priority over any time settings you make manually.
•The watch is designed to update the date and day of the week automatically for the period January 1, 2000 to December 31, 2099. Setting of the date by the time calibration signal cannot be performed starting from January 1, 2100.
•This watch can receive signals that differentiate between leap years and
•Though this watch is designed to receive both time data (hour, minutes, seconds) and date data (year, month, day), certain signal conditions can limit reception to time data only.
•If you are in an area where proper time calibration signal reception is impossible, the watch keeps the time with the precision noted in “Specifications”.
•If you have problems with proper time calibration signal reception or if the time setting is wrong after signal reception, check your current city code and DST (summer time) settings.
•The Home City setting reverts to the initial default of TYO (Tokyo) whenever the battery power drops to Level 5 (C) or when you have the rechargeable battery replaced. If this happens, change the Home City to the setting you want.
Transmitters
The time calibration signal received by this watch depends on the currently selected Home City code.
•When a U.S. time zone is selected, the watch receives the time calibration signal transmitted from the United States (Fort Collins).
•When a Japanese time zone is selected, the watch receives the time calibration signal transmitted from Japan (Fukushima and Fukuoka/Saga).
•When a European time zone is selected, the watch receives the time calibration signals transmitted from Germany (Mainflingen) and England (Anthorn).
•When a China time zone is selected, the watch receives the time calibration signals transmitted from China (Shangqiu City).
•When your Home City is LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW (which can receive both the Anthorn and Mainflingen signals), the watch first tries to pick up the signal it last successfully received. If that fails, it tries the other signal. For the first receive after you select your Home City, the watch tries the nearest signal first (Anthorn for LIS, LON, Mainflingen for MAD, PAR, ROM, BER, STO, ATH, and MOW).
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 automatically exits the setting screen.
•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 D and 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 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 turns off automatically whenever an alarm sounds.
•Frequent use of illumination runs down the battery.
Auto light switch precautions
•The auto light switch is turned off automatically whenever battery power is at Level 4 (C).
•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.
More than 15 degrees | • Illumination may not turn on if the face of the watch is |
too high | more than 15 degrees above or below parallel. Make |
| sure that the back of your hand is parallel to the ground. |
| • 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 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 (with no signal calibration)
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)
Time Calibration Signal Reception: Auto receive 6 times a day (Remaining auto receives cancelled as soon as one is successful) (five times for the China signal); Manual receive
Receivable Time Calibration Signals: Mainflingen, Germany (Call Sign: DCF77, Frequency: 77.5 kHz); Anthorn, England (Call Sign: MSF, Frequency: 60.0 kHz); Fort Collins, Colorado, the United States (Call Sign: WWVB, Frequency: 60.0 kHz); 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)
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 daily alarms; one snooze alarm; Hourly Time Signal
Illumination: LED
Other: Power Saving; Manual hour and minute hand home position correction
Power Supply: Solar cell and one rechargeable battery
Approximate battery operating time: 6 months (from full charge to Level 5 (C)) 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
•4 minutes of signal reception per day
Frequent use of illumination runs down the battery. Particular care is required when using the auto light switch.
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