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.
Cargo
SEIGAMARU
Cargo · last seen 35°N 135°E · Jun 2026 · MMSI 431004012 · Call sign JD3429
Not yet on Master's MateType
Cargo
Length
75 m
Beam
12 m
Draft
4.9 m
Call sign
JD3429
IMO
9673771
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
9
SEIGAMARU is a merchant ship, 75 metres on deck. Below, she has 12 metres in the beam and a draft measuring 4.9 metres. Find her under MMSI 431004012, call sign JD3429, IMO 9673771. Bring SEIGAMARU aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for commercial operators
Eyes on SEIGAMARU, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
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Last known position · Jun 15, 2026
Position
34.6262° N, 135.4600° E
Transiting the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put SEIGAMARU on the map. It hands you the full bridge:
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
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.
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About SEIGAMARU
What kind of vessel is SEIGAMARU?
SEIGAMARU is a Cargo.
Where was SEIGAMARU last seen?
SEIGAMARU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is SEIGAMARU's MMSI?
SEIGAMARU's MMSI is 431004012. Call sign JD3429. IMO 9673771.
How big is SEIGAMARU?
SEIGAMARU is about 75 m long, 12 m on the beam, drawing 4.9 m.
Is SEIGAMARU on the Master's Mate Safety Initiative Network?
Not yet. If SEIGAMARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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