iwc Aquatimer Deep Two 3547 Mode D'emploi page 30

To avoid damage to the depth gauge, the adjustment crown should
never be touched when unprotected. Manipulation of the adjustment
crown when the hoop guard is open can lead to inaccuracies in the
values shown by the depth gauge.
Depth gauge of the Aquatimer Deep Two
If you are planning to use the watch to track your dive time and depth,
you should be a certified open water diver and have the water-
resistance and depth gauge checked regularly by an IWC service centre.
To ensure that your watch continues to function perfectly, you should have it
checked by an IWC service centre at least once a year.
Under no circumstances should you use the watch and its entirely mechani-
cal depth gauge to replace a conventional, and in some cases mandatory,
dive computer or other dive log equipment. The watch and its entirely
mechanical depth gauge are intended solely for use as an auxiliary instru-
ment for measuring dive time and depth.
We recommend that you compare the results shown by the watch with the
information provided by your dive computer to get a feel for the watch's
accuracy.
If you are forced to rely on your watch and its entirely mechanical depth
gauge in an emergency (malfunction of your dive computer or other scuba
equipment), you must take into account the inaccuracies that may arise as a
result of mechanical and physical factors.
To avoid damage, the depth gauge is mechanically disengaged below
depths of approximately 50 metres. Depths below this limit are no longer
indicated (14).