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.

Vessel

Sea Gem

MMSI 636019713

Not yet on Master's Mate

Flag

LBR

Length

333 m

IMO

9602655

AIS reports

Sea Gem, a boat flying the flag of Liberia, measures 333 metres on deck. Her registration reads MMSI 636019713, IMO 9602655. It's free to add Sea Gem to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.

Free forever · No credit card

Is Sea Gem your boat?

Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.

Claim this boat — free →

Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever Sea Gem 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

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put Sea Gem on the map. It hands you the full bridge:

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.

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.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim Sea Gem and switch it all on

Free to join · nothing to install to start · cancel anytime

Claim free → unlock everything

About Sea Gem

What kind of vessel is Sea Gem?

Sea Gem is a vessel flagged to Liberia.

What is Sea Gem's MMSI?

Sea Gem's MMSI is 636019713. IMO 9602655.

How big is Sea Gem?

Sea Gem is about 333 m long.

Is Sea Gem on the Master's Mate Safety Initiative Network?

Not yet. If Sea Gem is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).