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
SEISYU MARU
Cargo · last seen 35°N 135°E · Jun 2026 · MMSI 431006647 · Call sign JD3882
Not yet on Master's MateType
Cargo
Length
84 m
Beam
13 m
Draft
5 m
Call sign
JD3882
IMO
9767651
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
6
SEISYU MARU is an ocean freighter, 84 metres LOA. Her hull carries a beam of 13 m and a draft of 5 m. On the registers she's MMSI 431006647, call sign JD3882, IMO 9767651. Claim SEISYU MARU free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card · for commercial operators
Eyes on SEISYU MARU, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 15, 2026 13:51 UTC
Position
34.5156° N, 135.3991° E
Status
Under way (engine)
Speed
0.0 kn
Course
159°
Destination
JP SBK 5
ETA
06-14 12:40 UTC
Transiting the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put SEISYU MARU 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 SEISYU MARU
What kind of vessel is SEISYU MARU?
SEISYU MARU is a Cargo.
Where was SEISYU MARU last seen?
SEISYU MARU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is SEISYU MARU's MMSI?
SEISYU MARU's MMSI is 431006647. Call sign JD3882. IMO 9767651.
How big is SEISYU MARU?
SEISYU MARU is about 84 m long, 13 m on the beam, drawing 5 m.
Is SEISYU MARU on the Master's Mate Safety Initiative Network?
Not yet. If SEISYU MARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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