The Seiko Maru was built in 1940 by the Harima Dockyard for the Darien Kisen Line as a medium freighter.
During the “Hailstone” attack, Seiko Maru was hit by dive bombers on the port side and resulting explosion set her fuel oil a fire. She was discovered by Sam Redford, who also recovered her bell. Seiko Maru now rests at a maximum depth of 185 fsw.
- Seiko Maru
- Displacement: 5,386 tons
- Length: 395 feet
- Beam: 53 feet
- Engine: 1 coal driven turbine
- Max Speed: 16.1 kts.
- Launched: 14 MAY 1940.