Troubleshooting
Auto time setting is not correct.
Q1The watch cannot perform a receive operation.
Is the watch’s battery charged?
Signal reception is not possible while battery power is low. Keep the watch exposed to light until it recharges sufficiently.
Is the watch in the Timekeeping Mode?
Time signal auto receive is performed only while the watch is in the Timekeeping Mode. Press (B) to enter the Timekeeping Mode.
- To trigger a time signal receive operation manually, enter the Receive Mode and then hold down the (A) button for about two seconds.
Is your Home City setting correct for your location?
The watch will not indicate the correct time if the Home City setting is wrong. Change your Home City setting so it correctly reflects your location.
After checking the above, the watch still cannot perform a receive operation.
Time signal reception is not possible when any one of the conditions exists.
- When watch is at Level 2 power saving
- Barometric Pressure Change Indications turned on
- Timer countdown in progress
If successful reception is not possible for some reason, you can adjust the time and day settings manually.
Q2The signal receive operation always fails.
Is the watch in a location that is appropriate for signal reception?
Check your surroundings and move the watch to a location where signal reception is better.
Did you avoid touching the watch while the receive operation was in progress?
Minimize movement of the watch and do not perform any watch operation while a receive operation is in progress.
Is there an alarm configured to sound during the same period that the signal receive operation is performed?
Receive stops if an alarm operation starts while it is being performed. Disable the alarm.
Is the signal transmitter in your area transmitting a signal?
The transmitter of the time signal may not be transmitting. Try again later.
Q3Time setting is incorrect even when time signal reception is successful.
Strong magnetism or impact may cause the hands of the watch to go out of alignment. Adjust hand alignment.
Altitude Measurement
Q1Readings produce different results at the same location.
Watch readings are different from altitude information available from other sources.
Correct altitude readings are not possible.
Relative altitude is calculated based on changes in barometric pressure measured by the watch’s pressure sensor. This means that barometric pressure changes can cause readings taken at the same location to be different. Also note that the value displayed by the watch may be different from the actual elevation and/or sea level elevation indicated for the area where you are located. When using the watch’s altimeter while mountain climbing, it is recommended that you regularly calibrate its readings in accordance with local altitude (elevation) indications.
Q2Following a relative altitude reading, the watch’s second hand points to 9 o’clock.
The second hand will move to 9 o’clock if a reading is outside the allowable altitude measurement range (-700 m to 10,000 m (-2,300 to 32,800 feet)). If [ERR] is displayed, there may be a problem with the sensor.
Q3[ERR] appears during measurement.
There may be a problem with the sensor. Try taking another measurement. If [ERR] keeps appearing after multiple measurement attempts, contact a CASIO service center.
Digital Compass
Q1The entire display is flashing.
Abnormal magnetism has been detected. Move away from any potential source of strong magnetism and try taking a reading again.
- If the display flashes again, it could mean that the watch itself has become magnetized. Move away from any potential source of strong magnetism, perform bidirectional calibration, and then try taking a reading again.
Q2[ERR] appears during measurement.
There is a problem with the sensor or there may be a source strong magnetic force nearby. Move away from any potential source of strong magnetism and try taking a reading again. If [ERR] keeps appearing after multiple measurement attempts, contact a CASIO service center.
Q3[ERR] appears following bidirectional calibration.
If [- - -] is followed by [ERR] on the display, it could mean there is something wrong with the sensor.
- If [ERR] disappears after about one second, try performing 2-point calibration again.
- If [ERR] continues to appear even after multiple attempts, contact your original retailer or CASIO service center.
Q4Direction information indicated by the watch is different from that indicated by a backup compass.
Move away from any potential source of strong magnetism, perform 2-point calibration, and then try taking a reading again.
Q5Readings at the same location produce different results.
Cannot take readings indoors.
Move away from any potential source of strong magnetism and try taking a reading again.
Barometric Pressure Measurement
Q1Following a relative barometric pressure reading, the watch’s second hand points to 9 o’clock.
The second hand will move to 9 o’clock if a reading is outside the allowable barometric pressure measurement range (260 hPa to 1,100 hPa (7.65 inHg to 32.45 inHg)). If [ERR] appears on the display, there may be a problem with the sensor.
Q2[ERR] appears during measurement.
There may be a problem with the sensor. Try taking another measurement. If [ERR] keeps appearing after multiple measurement attempts, contact a CASIO service center.
Temperature Measurement
Q1[ERR] appears during measurement.
There may be a problem with the sensor. Try taking another measurement. If [ERR] keeps appearing after multiple measurement attempts, contact a CASIO service center.
World Time
Q1The time for a World Time City is not correct.
The summer time setting (standard time/summer time) is wrong.
Hand Movement and Indications
Q1I don’t know what mode the watch is in.
You tell which mode the watch is currently in by checking the position of the mode hand.
- Hold down the (B) button for about two seconds to enter the Timekeeping Mode.
Q2The second hand is jumping at two-second intervals.
Battery power is low. Keep the watch exposed to light until it recharges sufficiently.
Q3All hands are stopped and buttons do not work.
The battery is dead. Keep the watch exposed to light until the battery recharges sufficiently.
Q4The hands suddenly start moving at high speed.
This is due to one of the reasons below, and does not indicate malfunction. Simply wait until normal hand movement resumes.
- The watch is recovering from a power saving state.
- A time signal is being received and the time setting is being adjusted.
Q5Hands are stopped and buttons do not work.
The watch is in the charge recovery mode. Wait until the recovery process is complete (for about 15 minutes). The watch will recover more quickly if you place it in a brightly lit location.
Q6The time indicated by the hands is different from the digital time.
Strong magnetism or impact may cause the hands of the watch to go out of alignment. Correct hand position alignment.
Crown Operations
Q1Nothing happens when I rotate the crown.
Leaving the crown pulled out for more than two minutes without performing any operation will automatically disable crown operation. Push the crown back in to its normal position and then pull it out again.
Usage Restrictions
Q1[RECOVER] is flashing on the display.
A flashing [RECOVER] indicates that some functions have been temporarily disabled to protect against a drop in battery voltage.
Charging
Q1The watch does not work even though it is exposed to light.
The watch stops operating whenever the battery goes dead. Keep the watch exposed to light until it recharges sufficiently.
Q2[CHARGE] is flashing on the digital display.
The charge level of the watch is extremely low. Immediately expose the watch to light to charge it.
