F990
Reference position
Checking and correcting the reference position
If the time or calendar is not shown correctly even after proper reception of the time info, check whether the current reference position is correct.
- The reference position is the base position of all hands and calendar to indicate the various functions of this watch correctly.
- If the hands and indication do not reflect the correct reference position, the time and calendar will not be indicated accurately even if the time info is received.
Caution
Be sure to check the current reference position and adjust it only when the position is not correct.
- Pull the crown out to position 1.
- Rotate the crown to set [CHR] on the mode indication to the ◀ marker.
- Pull the crown out to position 2.
- Press and hold the lower right button A.
- Check the reference position.
- Press and release the lower right button A.
- Press and release the lower right button A repeatedly to change the hand/indication to be corrected.
- Rotate the crown to adjust the hand/indication.
- Repeat steps 7 and 8.
- Push the crown in to position 0.
- Pull the crown out to position 1.
- Rotate the crown to set [TME] on the mode indication to the ◀ marker.
- Push the crown in to position 0 to finish the procedure.
The second hand points to 30 seconds and stops.
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Set the mode name you want horizontal.
The second hand, dual time indication and function indication point to 0 and stop.
The hands and indication start to move to the current reference positions stored in memory.
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Release the button as the hands start to move.
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Some hands show special movement to adjust their position.
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After the hands and indication stop, check whether all the hands and indication are at correct positions referring to the figure below:
All hands and indication must be in the correct positions.
Correct reference positions
![](/support/html/en/f990/images_f990/refposi_f990.png)
Hour, minute and second hands: 0 hour 00 minute 0 second
Date indication: midway between “31” and “1”
Function indication: “S” (Sunday)
Dual time indication: 0 hour 00 minute
Correct | No adjustment is required. Push the crown in to position 0. Set the mode to [TME] after that to finish the procedure. |
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Wrong | Click here to proceed to following steps. |
The function indication slightly moves and the indication and date indication become adjustable.
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Each time you press the lower right button A, the target changes as follows.
Function indication/date indication → Dual time indication →
Hour and minute hands → Second hand → (Back to the top)
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The hands and indications slightly move when selected to show they become adjustable.
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The hour and minute hands move synchronously.
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Date indication changes to the next as the function indication rotates 5 times.
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When you rotate the crown quickly a few times, the hand/indication will move continuously.
To stop the rapid movement, rotate the crown in either direction.
The second hand points to 30 seconds and stops.
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Set the mode name you want horizontal.
The second hand returns to indicate the second.