EXAMPLES FROM THE WEB FOR DEATHWATCH
In the wainscot of the room a deathwatch ticked its doleful omen.
The deathwatch, like conscience, doth make cowards of us all.
Every pulse-beat is in exact time with the cricket's chant and the tickings of the deathwatch in the wall.
It sounds to me like the echoing tick, tick of some great beetle; like the sort of noise which a deathwatch makes, you know.