To what depth are Certina watches water resistant?
Certina sport watches set the standard in water resistance. In water sports, a timepiece with a minimum water resistance of 100 meters is recommended. All Certina sport watches are equipped with either the ‘DS’ or ‘DS +’ system, and tested at a minimum pressure of 10 atmospheres (equivalent to a depth of 100 meters at sea level) in accordance with the ISO 6425 standard. Every Certina must undergo a series of tests for water resistance before it reaches the sales outlet. The first test places the timepiece under high air pressure, to ensure that air cannot find its way into the watch housing. The following test takes it through wide temperature variations in a damp environment, to ensure the total absence of water condensation inside the watch glass. The final hurdle which must be overcome by every Certina is the diving test: several hours under water at high pressure, to simulate the depth for which the watch has been certified, and guaranteed to withstand. The water resistance rating
Certina sport watches set the standard in water resistance. In water sports, a timepiece with a minimum water resistance of 10 bar (100 m) is recommended. All Certina sport watches are equipped with the ‘DS’ concept, and tested to a minimum pressure of 10 bar (equivalent to a depth of 100 m) in accordance with the relevant ISO standards. It should also be understood that water resistance cannot be guaranteed for an indefinite length of time. It may become compromised by ageing of the seals or impacts to the crown or push-button. For this reason, we recommend that you have the timepiece checked for water resis-tance by an authorised Certina Service agent annually, and have any faulty components replaced. Do not attempt to open the timepiece yourself under any circumstances.
