Cách sử dụng
A chronograph is a type of watch that has a stopwatch function built into it. It is used to measure the amount of time it takes to complete a specific activity, such as running a race or cooking food. The word 'chronograph' comes from the Greek words 'chronos' (time) and 'graph' (to write). This type of watch is popular with athletes, pilots, and divers because it allows them to accurately time their activities.