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

Okesa Maru

MMSI 431000001

Not yet on Master's Mate

Flag

JPN

Length

135 m

IMO

9052616

AIS reports

Out of Japan, Okesa Maru is a 135-metre craft. On AIS she shows as MMSI 431000001, IMO 9052616. The Master's Mate Safety Initiative Network welcomes Okesa Maru — free to join, cruiser-run, and always on watch.

Free forever · No credit card

Is Okesa Maru 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.

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

Wherever Okesa Maru 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 Okesa Maru 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 Okesa Maru and switch it all on

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About Okesa Maru

What kind of vessel is Okesa Maru?

Okesa Maru is a vessel flagged to Japan.

What is Okesa Maru's MMSI?

Okesa Maru's MMSI is 431000001. IMO 9052616.

How big is Okesa Maru?

Okesa Maru is about 135 m long.

Is Okesa Maru on the Master's Mate Safety Initiative Network?

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