MMSI 367052540 · Call sign WDC6180
Not yet on Master's MateF/V Sea Gem is an American fishing craft, spanning 15.5 metres. She has a beam of 4.6 m and a draft measuring 2.2 metres. On AIS she appears as MMSI 367052540, call sign WDC6180. F/V Sea Gem is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.
Keep the fleet in sight — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put F/V Sea Gem on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.