The ship's armament consisted of a main battery of four 24 cm (9.4 in) SK L/40 guns in twin gun turrets, one fore and one aft of the central superstructure. Her secondary armament consisted of eighteen 15 cm (5.9 inch) SK L/40 guns and twelve 8.8 cm (3.45 in) SK L/30 quick-firing guns. She also carried twelve machine cannon, but these were later removed. The armament suite was rounded out with six torpedo tubes, all in above-water swivel mounts. The ship's belt armor was thick, and the main armor deck was thick. The conning tower and main battery turrets were protected with of armor plating, and the secondary casemates received 150 mm of armor protection.