Big Ben is a rather large timepiece.
a clock or watch
an hourglass (the sand)
Horologists 'study time.' Most of the time, it means they are just watch/clock makers
They use a digital watch...
swatch watch, mock clock
swatch watch, mock clock
swatch watch, mock clock
10:10
alarm
The machinery that runs a timepiece is called the movement. It is made up of various components such as gears, springs, and escapements that work together to regulate the timekeeping function of the watch or clock.
mock clock, schlock clock
mock clock
rock clock
Clock crock.
A watch is a smaller timepiece that is worn on the wrist.
watch