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Citizen Cal F900 Manual

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F900 User’s guide
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Using alarm
The alarm on this watch always works based on the home time.
1.
Change the mode to [ALM] and pull the crown out to
position
2
.
The dual time indication indicates the current alarm time setting and the
second hand shows the current alarm setting (
ALM ON/OFF
).
• The hour and minute hands may automatically move to provide a clear
view of the alarm time setting.
2.
Rotate the crown to set the alarm time.
• If you rotate the crown quickly a few times, the hand will move
continuously. To stop the rapid movement, rotate the crown in either
direction.
3.
Press and release the lower right button
A
to set the alarm
setting (ALM ON/OFF).
• Each time you press button, the setting changes alternately.
4.
Change the mode to [TME] and push the crown in to position
0
to finish the procedure.
The second hand returns to indicate the seconds.
To stop alarm
Press any button.
Checking and adjusting leap second setting
• The leap second setting can be adjusted by executing leap second reception.
You can find a list of leap seconds at the homepage of IERS
(INTERNATIONAL EARTH ROTATION & REFERENCE SYSTEMS
SERVICE).
http://hpiers.obspm.fr/eop-pc/earthor/utc/TAI-UTC_tab.html
1.
Change the mode to [SET] and pull the crown out to position
2
.
The second hand points to 0 second and stops.
2.
Press and hold upper right button
B
for 2 seconds or more.
Using the “0:00:00” position as the starting point, the minute and second
hands indicate the leap second setting.
When the leap second setting is
“−36 seconds”
When the leap second setting is
“−65 seconds”
The hands point to “0 minute
36 seconds”.
The hands point to “1 minute
5 seconds”.
3.
Turn the crown to adjust the setting if the leap second is not
correct.
• Adjustable range is from 0 to ‒90 seconds.
4.
Change the mode to [TME] and push the crown in to position
0
to finish the procedure.
The second hand returns to indicate the seconds.
Indicating summer time
1.
Change the mode to [
TME
] or [
LLI
] and pull the crown out
to position
2
.
The function hand indicates summer time setting of the home time (
SMT
ON/OFF
).
• When the mode is [UTC], you can only change summer time setting of
the home time.
2.
Press and release the lower right button
A
.
SMT ON
Summer time is indicated.
SMT OFF
The standard time is indicated.
• Each time you press button
A
,
SMT ON
and
OFF
changes alternately.
3.
Press and release the upper right button
B
.
The function hand indicates summer time setting of the local time (
SMT
ON/OFF
).
• Each time you press button
B
, the minute hand of setting target
slightly moves and the target (home time/local time) of time zone
setting changes alternately.
4.
Press and release the lower right button
A
to change
summer time setting of the local time.
5.
Push the crown in to position
0
to finish the procedure.
The second hand returns to indicate the seconds.
Using the chronograph
The watch can measure up to 23:59’59.95” by 1/20 seconds.
1.
Change the mode to [CHR] and push the crown in to position
0
.
0.00 second is indicated.
2.
Start measurement.
Start/stop: press button
B
.
• 1/20 chronograph seconds are indicated by the function hand only
when the chronograph is stopped.
Reset: press button
A
while the chronograph is stopped.
After measurement
Reset the chronograph and change the mode to [
TME
].
3


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