The waterproofness of your watch
Before embarking on any water activity, it is essential to check the water resistance of your watch. A watch's water-resistance is defined as its ability to prevent liquids or gases from passing through the case. This water-resistance is checked by our experts using a machine that will blow air at high pressure on the watches to test their resistance. Thanks to a system of seals on the perimeter of the case and the mineral glass affixed, Pierre Lannier watches are waterproof 30 or 50 meters. This denomination means that you can wear your Pierre Lannier watch for nautical activities, and will withstand a pressure exerted by water equivalent to 30 or 50 meters deep. For more information on the water resistance of your watch, see our blog post Pierre Lannier watches waterproof guarantee. It is important to know that the water-resistance of your watch is not guaranteed for life and requires a regular check-up to determine if it is possible to immerse your timepiece or not. Indeed, the natural wear of the watch and the seals can compromise its water-resistance. To be sure to be able to immerse your watch without risk of it taking on water, we advise you to have it checked every year before the summer period.