MMSI 219022389 · Call sign OWER
Not yet on Master's MateRegistered in Denmark, POSEIDON is a 27-metre weekend cruiser. She has a beam measuring 7 metres and a draft measuring 2 metres. Officially she's MMSI 219022389, call sign OWER, IMO 9778698. POSEIDON can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put POSEIDON on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.