iwc IW372503 Instrucciones De Manejo página 23

Determination of speed
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When covering a calibrated distance of one kilometre,
the average speed can be read directly on the tachy-
meter scale. The chronograph is started on passing the
starting point, and it is stopped at the end of the mea-
sured distance. The elapsed time can then be read on
the tachymeter scale as the speed in km/h. Please note
that a period of one minute must not be exceeded.
Example: It takes 40 seconds to drive one kilometre,
so the average speed is exactly 90 kilometres per hour.
Water-resistance
The water-resistance of IWC watches is stated in bar
and not in metres. Metres, which are often used else-
where in the watch industry to indicate water-resistance,
cannot be equated with dive depth because of the test
procedures that are frequently used. Water-resistance
shown in metres provides no indication as to actual use
of the watch in the presence of moisture and wetness,
and in or under water. Recommendations for use in con-
nection with the water-resistance of your watch can be
found on the Internet at www.iwc.com/water-resistance.
Your authorised IWC Official Agent will also be pleased
to provide you with information.