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 Oct 13, 2017 15:47 UTC
SEIZAN MARU N/A 431001149 Oct 02, 2017 05:05 UTC
SEIZAN MARU NO.28 9798284 431008331 >JP HKT E2WS Oct 05, 2017 17:17 UTC

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