"Wettin" saw service in I Squadron of the German fleet for most of her career, along with her sister ships. She was occupied with extensive annual training, as well as making good-will visits to foreign countries. The training exercises provided the framework for the High Seas Fleet's operations during World War I. The ship was decommissioned in June 1911 as dreadnought battleships began to enter service but was reactivated for duty as a gunnery training ship between December 1911 and mid-1914.