The requested vessel with name SEIZAN MARU and MMSI:0 and IMO:7727542 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
SEIZAN MARU 9176199 431401335 >JP KND OFF Dec 11, 2017 14:05 UTC
SEIZAN MARU N/A 431001149 Nov 30, 2017 07:41 UTC
SEIZAN MARU NO.28 9798284 431008331 >JP NAH U Nov 27, 2017 17:41 UTC

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