 In 1970 , salvage operations began on Mutsu 's wreck that lasted until 1978 and recovered about 75 % of the ship . The salvagers recovered bodies of 849 crewmen killed during the explosion . In 1995 , the Mutsu Memorial Museum declared that no further salvage operations were planned . The only significant portion of the ship that remains is a 35 @-@ meter ( 114 ft 10 in ) long section running from the bridge structure forward to the vicinity of No. 1 turret . The highest portion of the ship is 12 meters ( 39 ft 4 in ) below the surface . Many , but not all , artifacts are displayed at the Mutsu Memorial Museum in Tōwa @-@ Cho . Since 1963 , a memorial service has been held there every year on 8 June in honor of the crew . 
