MMSI 367170260 · Call sign WCX5109
Not yet on Master's MateSEA MASTER, an American fishing vessel, measures 9.8 metres on deck. She carries a 4.9 m beam and a 2.7-metre draft. Officially she's MMSI 367170260, call sign WCX5109. SEA MASTER belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.
Keep the fleet in sight — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put SEA MASTER on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.