A soft, clean microfibre cloth is usually enough for the regular cleaning of your watch. This lets you carefully remove dust, fingerprints and light dirt.
For suitable models with adequate water resistance, you can also clean the case or stainless steel strap with some lukewarm water. Make sure the crown is fully closed.
Please do not use aggressive cleaning agents, solvents, alcohol or abrasive sponges. These can damage seals, coatings, leather or surfaces.
After cleaning, dry your watch thoroughly with a soft cloth.