Your watch is certified Water Resistant and its water-resistance is ensured by a series of seals.
Before any contact with water, however, please ensure that the crown of your watch is not pulled out.
When your watch is under water, do not activate the push-pieces for the chronograph function, the minute-repeater or the second time zone.
After swimming, make sure to rinse your water-resistant watch in fresh water so as to neutralize the harmful effects of sea-water or chlorine.
The water-resistance seals of your certified Water Resistant watch undergo natural deterioration due to aging.
You are recommended to have a regular water-resistance check performed once every year if your watch is worn during sporting activities or frequently comes into contact with water, or once every two years when worn in normal conditions. Carried out by Cartier's After-Sales Services, this check makes it possible to determine the condition of your watch's water-resistance, and to change all the seals, if necessary.