Why does the second hand seize when the crown is completely depressed?

The crown has 3 positions.

Normal screwed down.
First pull out position.
Second pull out position.

Setting the Time:
Pull out the crown to position 3.
Rotate the crown to set the exact time.
Ensure that you are in the daytime12 hour segment by allowing the hands to pass 12 o'clock and notice if the date moved on or not.
If the date changed, then you will need to advance at least 2 hours before moving on to set the date.
If you do not need to change the date, return the crown to position 1.


Setting the Date:
DO NOT DO THIS IF THE WATCH IS BETWEEN 8pm & 2am
Pull crown to position 2.
Rotate the crown clockwise to set to the correct date.
Return the crown to position 1.


Setting the Alarm [12 hour]
Pull the crown to position 2.
Rotate the crown anti clockwise to move the alarm hand to the desired time.
Return the crown to position 1.
To activate the alarm, press the 8 o'clock button. You will hear 2 beeps.
To deactivate the alarm, press the 8 o'clock button. You will hear 1 beep.
NB If the alarm is not cancelled while it sounds the first time, it will repeat again in 2 minutes time. The alarm sound last for 15 seconds. If the alarm time coincides with 1 beep of the countdown, the alarm function will be cancelled.


Battery EOL [End Of Life]
The Swiss ISA 8270 movement uses a 395 cell and will signify a low power state by advancing the small seconds hand 4 steps every 4 seconds.


Setting the Countdown
You can specify a countdown of between 1 and 10 minutes.
Press the 4 o'clock button to enter setting mode. You will hear 1 beep.
Press the 4 o'clock button to move the central timing hand successively to the desired countdown time.
Wait 3 seconds for the watch to automatically exit the setting mode.
You can change the duration of the countdown [except in the last minute] at any time.
e.g. If the countdown is set to 10minutes, and you now want to change the countdown to 9 minutes, press the 4 o'clock button. The hours/seconds counter sub-dial will perform one complete turn and then stop at 60, before continuing.


Activating the Countdown:
Press the 2 o'clock button to start the countdown. You will hear 2 beeps.
The hours/seconds counter sub-dial will perform one complete turn and then stop at 60, before continuing.
When the countdown begins, the hour/seconds counter sub-dial indicates the seconds with 1 step every 2 seconds, and the central timing hand indicates the minutes with 1 step being 2.4 seconds.


Countdown tone:
There are 2 beeps every minute.
in the last minute:
50 seconds=1 beep.
40 seconds=1 beep.
30 seconds=2 beeps.
20 seconds=2 beeps.
10 seconds and less=1 beep every second with zero being 1 second long beep. Timer function automatically starts.


Timer:
After countdown has finished the timer starts automatically.
The central timing hand indicates the minutes with 1 step every 12 seconds. The hour/minutes counter sub-dial indicates the hours up to a maximum of 96.
Press the 4 o'clock button to see the timer seconds [display lasts up to a minute].
Press the 4 o'clock button to see the timer hours.
The timer has a maximum time of 96 hours [4 days] after which the hour/seconds sub-dial counter will stay at 0 and the central timing hand will stay at 12.


Start/Stop Timer:
Press the 2 o'clock button to stop the timer. You will hear 1 beep.
Press the 2 o'clock button to resume the timer. You will hear 2 beeps.


Setting the Countdown & Timer:
Countdown reset:
Press the 2 o'clock button to stop the countdown. You will hear 1 beep.
Press the 4 o'clock button to reset.


Setting the Timer:
Press the 2 o'clock button to stop the timer. The hour/seconds counter sub-dial will show the elapsed hours and the central timing hand the elapsed minutes.
Press the 4 o'clock button to view the seconds elapsed on the hour/seconds counter sub-dial.
Press the 4 o'clock button to reset.


Resetting the Hands:
If the hands do not zero correctly, which might occur after a battery change or a violent shock, you can make adjustments by doing the following settings as long as the countdown is not in operation.
To correct the hour/seconds counter sub-dial, pull the crown out to position 2 and wait 1 second.
Press either the 2 or 4 o'clock button; the central timing hand will turn and stop [not necessarily at 12].
Press the 2 o'clock button to increment the hours/seconds counter sub-dial hand to position it at 60.
To correct the central timing hand, press the 4 o'clock button to increment the hand to the 12 position.
Return the crown to position 1.



If the battery had been replaced, the central timing hand defaults to the 10 minute position. If the battery had not been replaced, the central timing hand will return to the previously set position.

if its fitted with a screw down crown you need unscrew it anti clock, then pull crown out to first position and turn in either direction it should change one of the functions then pull it out to the second position and turn crown to set the other functionr remember to push crown back and screw back to case side its spring loaded on some model of AQ some models you need to pull crown in and out to change date then spin hands with crown to change day. IWC have a good website.

Pull out crown to the time setting position (second click) and set time to 5.30 pm or am. Push crown back completely. Pull out crown to the date setting position (first click) and set it to 26th, then pull out crown further out to the time setting position (second click) and adjust watch hands forwards until the date changes to 27th. Date is changing at midnight, so, continue to adjust hands forward to the right time. Rate me, plz.

Easier than you think.
Pull your Crown out to the FIRST stop (were you would normally set your date). Push the "A" button (top chrono button) for your dial at the "3 oclock" area, Push the "B" button(bottom chron button) for the second hand.

Do as follows:
1) pull out crown and set the hour and minute hands at 6 o'clock (they must be lined perfectly in opposite directions)
2) push the crown in half way back (not completely)
3) push and hold the button at 2 o'clock (set the big seconds hand to zero) and release it when done
4) when big seconds hand is zeroed push the crown back in
5) pull the crown out again and set desired time
6) push the crown back in.
If all actions described do not work, you will have to visit your nearest watch repair shop and ask to refit chronograph hand as in this case it is out of balance (not pointed at exact mark).

Rate me, please.

On most watches all you have to do is pull the crown to position 2 (the last) and depress pusher A (on the top). The second hand should advance in 1 second intervals. Keep pushing the A pusher until the second hand lines up with 12 hour marker. Push the crown back in and your done!

When you reset the big seconds hand to zero, the hour and the minute hand are not engaged in this function, so, there is no fault with the watch movement.
Do as follows:
1) pull out crown and set the hour and minute hands at 6 o'clock (they must be lined perfectly in opposite directions)
2) push the crown in half way back (not completely)
3) push and hold the button at 2 o'clock (set the big seconds hand to zero) and release it when done
4) when big seconds hand is zeroed push the crown back in
5) pull the crown out again and set desired time
6) push the crown back in.
If all actions described do not work, you will have to visit your nearest watch repair shop and ask to refit chronograph hand as in this case it is out of balance (not pointed at exact mark).

Rate me, please.

The manual explains it clearly From here http://www.citizenwatch.com/CUK/English/settingsresults.asp?caliber=e870

You have to reset your watch. Pull out crown to first click and try to move stop watch hand by pressing one of the pushbuttons. If this do not work, push the crown back in. Now pull out crown fully tto the second click and try to manipulate with pushbuttons again.
After resetting stop watch hand to 0 push the crown in completely.
Job done.