iwc 5005 Mode D'emploi page 20

Setting the time
Pull out the crown to position 2. This will stop the movement. For setting
the time accurately to the second, it is best to bring the movement to a stop
as the seconds hand passes over 60. You should now move the minute
hand a few minute lines beyond the time to be set. Then position the minute
hand by moving it gently backwards until it is exactly above the correct
minute line. By adopting this procedure, you will ensure that the minute
hand begins to move without any delay when you restart the movement. To
start the seconds hand, push in the crown to position 0. When setting the
time, please be aware of the date change, which always takes place at mid-
night (24.00). If this change has already taken place at 12.00 noon, you
must turn the hands forwards through 12 hours.
Important: Although the watch is water-resistant in positions 0, 1 and 2,
the crown must nevertheless always be screwed down again for normal use
(position X).
Reading the time in the dark
The dial and the hour and minute hands of your watch are provided with
luminous elements that permit the time to be read easily, even in total
darkness.