Whether your watch can come into contact with water depends on its particular water resistance.
That said, we generally don't recommend showering with your watch on. Hot water, steam, soap, shampoo and strong temperature changes can put strain on the seals and affect the water resistance.
Even if a watch is suitable for certain contact with water, that doesn't automatically mean it's permanently protected against hot water or care products.
If your watch accidentally gets wet, dry it thoroughly afterwards with a soft cloth. Make sure the crown is fully closed.