Watch Buoy. Buoy moored in vicinity of a light-vessel to mark her position, and to give warning if she should drag her moorings.
Watching. Said of a mark buoy when it is fully floating.
Watch Tackle. Small tackle consisting of one single block, one double block, and a rather short fall. Used for general purposes on deck. Formerly used for getting a small but strong pull on running rigging. Also called 'Handy Billy'.