anchor watch

If the vessel was at anchor in a roadstead, he had to keep his two-hour anchor watch the same as the rest of the crew.

He sent the hands below at ten o'clock, saying he would keep the anchor watch himself.

The ship was then moored with a kedge astern, sails furled, and all hands retired to rest, except an anchor watch.

Then the forecastle hands cast lots who should keep the first anchor watch.

I had the honour of keeping an anchor-watch in company with a grum old Swede, as we lay in the Hudson.