iwc Aquatimer Deep Two 3547 Mode D'emploi page 28

Reading the time in the dark
The dial, the hour and minute hands, the marking on the rotating bezel, as
well as the dive depth scale of your watch have luminescent elements that
allow you to read the time effortlessly, even in total darkness or in poor light
conditions in the water. The two luminescent elements at 12 o'clock serve
as a reference point.
Marking the start of a dive
The triangle on the rotating bezel can be aligned with the minute hand by
turning the rotating bezel anticlockwise. The desired point in time (for ex-
ample the time of entering the water at the start of the dive) can be set in this
way. You can read off the elapsed time (for example the duration of the dive)
on the rotating bezel. For safety reasons, the rotating bezel can only be
rotated in an anticlockwise direction. The rotating bezel is indexed audibly
and perceptibly in one-minute steps, and it is also legible in the dark thanks
to the luminescent markings.
Cleaning the watch after diving
After diving – and especially after diving in seawater – you should rinse your
watch under running mains water. This will prevent salt incrustation on the
case, bracelet and clasp.