 Her armament consisted of twelve 305 @-@ millimetre ( 12 in ) / 45 @-@ caliber K 10 guns in four triple turrets . Her secondary armament consisted of twelve 150 @-@ millimetre ( 5 @.@ 91 in ) / 50 K 10 guns mounted in casemates amidships . Eighteen 70 @-@ millimetre ( 3 in ) / 50 K 10 guns were mounted on open pivots on the upper deck above the casemates . Three more 66 @-@ mm K 10 guns were mounted on the upper turrets for anti @-@ aircraft duties . Four 530 @-@ millimetre ( 21 in ) submerged torpedo tubes were fitted , one each in the bow , stern and on each broadside ; twelve torpedoes were carried . 
