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

Shin Sekiyo

MMSI 431289000

Not yet on Master's Mate

Flag

JPN

Length

235 m

IMO

9748746

AIS reports

Shin Sekiyo is a Japanese vessel — 235 metres overall. Her papers read MMSI 431289000, IMO 9748746. Bring Shin Sekiyo aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.

Free forever · No credit card

Is Shin Sekiyo 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 Shin Sekiyo 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 Shin Sekiyo 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 Shin Sekiyo and switch it all on

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About Shin Sekiyo

What kind of vessel is Shin Sekiyo?

Shin Sekiyo is a vessel flagged to Japan.

What is Shin Sekiyo's MMSI?

Shin Sekiyo's MMSI is 431289000. IMO 9748746.

How big is Shin Sekiyo?

Shin Sekiyo is about 235 m long.

Is Shin Sekiyo on the Master's Mate Safety Initiative Network?

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