Water resistance is not a permanent feature of your timepiece. The rubber gaskets utilized in sealing your watch deteriorate over time. These gaskets can experience accelerated deterioration if you expose your timepiece to salt or chlorinated water, soaps and chemicals. We recommend having the gaskets replaced in your timepiece every 18 months. If your watch is exposed to salt or chlorinated water, soaps or chemicals, we recommend you have the gaskets replaced yearly to maintain the water resistant quality of your timepiece.