MMSI 368496000 · Call sign WDN9549
Not yet on Master's MateGREEN DIAMOND, a harbour workboat registered in the United States, measures 115 metres on deck. Below, she has a 34 m beam and a draft of 3.4 m. Her papers read MMSI 368496000, call sign WDN9549. The Master's Mate Safety Initiative Network welcomes GREEN DIAMOND — free to join, cruiser-run, and always on watch.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put GREEN DIAMOND on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.