clockwatch

noun
UK /ˈklɒkwɒtʃ/
US /ˈklɑːkwɑːtʃ/

A clockwatch is a watch that can also chime the time like a small clock.

Grandpa showed me his old clockwatch and let it ring out the hour.


OTHER MEANINGS

2. A watch that strikes the hours automatically, as opposed to a repeater that chimes on demand.

The antique clockwatch struck twelve at midnight.

3. The act of watching a clock closely, especially while waiting for something to happen.

His clockwatch during the final minutes of the shift made time seem to crawl.

4. A person assigned to keep time or monitor a clock, such as at a sporting event.

The clockwatch kept careful note of every second during the race.