"Wettin" took part in training cruises with I Squadron from 9 to 19 January and 27 February to 16 March 1905. "Wettin" was sent to assist her sister ship, , which had run aground in the Great Belt on 3 March. Individual and squadron training followed, with an emphasis on gunnery drills. On 12 July, the fleet began a major training exercise in the North Sea. It then cruised through the Kattegat and stopped at Copenhagen and Stockholm. The summer cruise ended on 9 August. The autumn maneuvers would normally have followed shortly thereafter but were delayed by a visit from the British Channel Fleet that month. The British fleet stopped in Danzig, Swinemünde, and Flensburg, where it was greeted by units of the German Navy. "Wettin" and the main German fleet were anchored at Swinemünde for the occasion. The visit was strained by the Anglo-German naval arms race, and the 1905 autumn maneuvers were shortened considerably, to just a week of exercises in the North Sea in early September. The first exercise presumed a naval blockade in the German Bight; the second envisioned a hostile fleet attempting to force the defenses of the Elbe. In October, I Squadron went on a cruise in the Baltic. In early December, I and II Squadrons went on their regular winter cruise, this time to Danzig, where they arrived on 12 December. On the return trip to Kiel, the fleet conducted tactical exercises.