The ship's armament consisted of a main battery of four 24 cm (9.4 in) SK L/40 guns in twin turrets, one fore and one aft of the central superstructure on the centerline. Her secondary armament consisted of eighteen 15 cm (5.9 inch) SK L/40 guns and twelve 8.8 cm (3.5 in) SK L/30 quick-firing guns. She also carried twelve machine cannon. Six torpedo tubes were mounted 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, and the secondary casemates received of protection.