The current position of SEIRYU MARU is in 35-03.472 N, 136-50.780 E reported at 2026-08-13 14:39:08. SEIRYU MARU (MMSI: 432501000) is a Engaged in dredging or underwater operations and is currently sailing under the flag of JPN, with a length overall (LOA) of 104 meters and a width of 17 meters.