iwc Aquatimer Automatic Operating Instructions Manual page 6

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T H E T E C H N I C A L R E F I N E M E N T S
O F T H E A Q U A T I M E R A U T O M A T I C
Your IWC watch shows you the time in hours, minutes and sec­
onds, together with the date. The dive time is read off on the in­
ternal rotating bezel, which for safety reasons can only be turned
anticlockwise. Your watch is water­resistant 30 bar and protected
by a sapphire glass of hardness grade 9 on Mohs' scale. The
mech anical movement with automatic winding has a power re­
serve of approximately 42 hours when fully wound. To ensure that
this extraordinary watch continues to perform faultlessly in the
future, it is essential to observe a few important operating instruc­
tions.
A Q U A T I M E R A U T O M A T I C