wristwatch
n. countable A2 Elementary US //ˈɹɪstˌwɑtʃ// UK //ɹˈɪstwɒtʃ// wrist·watch
n. a clock that you wear on your wrist. It is usually smaller than a wall clock and has a band that fits around your arm.
n. a timepiece designed to be worn on the wrist, typically featuring a band or strap for securing it to the arm.
He checks his wristwatch to see if the train is late.
She prefers a classic wristwatch over a modern digital phone because it looks more professional at work.
The collector spent decades acquiring rare wristwatches, eventually amassing a private gallery of mechanical timepieces that spanned the entire twentieth century.
From wrist + watch.