Perspiration and dust on the watch case and bracelet may cause skin irritation, and over time may cause the oxidation of stainless steel. In order to avoid these deposits, you can use a toothbrush and soap to clean the case and bracelet regularly, then rinse under a slow (non-strong) stream of water, and finally wipe dry with an absorbent cloth. For watches with leather straps, it is recommended to follow the same principles, but do not soak the strap. If the leather is splashed with water, soak up the drops with a cloth as soon as possible. After each immersion in chlorinated water or salt water, carefully rinse the watch under a stream of tap water (non-strong), and then wipe it dry with an absorbent cloth.