Master's MateSafety Initiative Network
The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.
Towing Vessel
SEA KING
MMSI 366922090 · Call sign WJ2599
Not yet on Master's MateType
Towing Vessel
Flag
USALength
30.4 m
Beam
8.2 m
Draft
4.2 m
Call sign
WJ2599
IMO
8841785
Official No.
274468
AIS reports
1
SEA KING is an American harbour workboat, 30.4 metres long. Her hull carries a beam of 8.2 m and a draft of 4.2 m. On the registers she's MMSI 366922090, call sign WJ2599, IMO 8841785. Working vessels like SEA KING are never truly alone on the Master's Mate Safety Initiative Network — free, with a fleet on watch.
Free forever · No credit card · for working boats
Built for boats that work — like SEA KING.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever SEA KING roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
Free with your claim · for working boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SEA KING on the map. It hands you the full bridge:
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim SEA KING and switch it all on
Free to join · nothing to install to start · cancel anytime
About SEA KING
What kind of vessel is SEA KING?
SEA KING is a Towing Vessel flagged to United States of America.
What is SEA KING's MMSI?
SEA KING's MMSI is 366922090. Call sign WJ2599. IMO 8841785.
How big is SEA KING?
SEA KING is about 30.4 m long, 8.2 m on the beam, drawing 4.2 m.
Is SEA KING on the Master's Mate Safety Initiative Network?
Not yet. If SEA KING is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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