The requested vessel with name SEIUN and MMSI:0 and IMO:7022409 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
SEIUN MARU 9177600 431103000 JP TYO T Dec 14, 2017 03:16 UTC
SEIUNMARU NO.38 N/A 431002584 JP HHR Dec 14, 2017 03:15 UTC

Also, you may try to find the vessel in our comprehensive Vessels Database or track this ship on the map.