MMSI 366558810 · Call sign WCD8208
Not yet on Master's MateWATCHTOWER is a boat under the American flag. Find her under MMSI 366558810, call sign WCD8208. Give WATCHTOWER the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
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
Joining the Safety Initiative Network doesn't just put WATCHTOWER on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.