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 AGN OFF Feb 21, 2018 05:03 UTC
SEIUNMARU NO.28 N/A 431000929 Feb 21, 2018 10:51 UTC
SEIUNMARU NO.38 N/A 431002584 JP OSA Feb 22, 2018 15:10 UTC

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