My Grandpa had this really cool watch, except it wasn't a watch-- it was a chronograph. It looks pretty similar to a watch but it also has the capabilities of a stop watch. There's an independent second hand for this.
He used to use it to time my sprints; I was in track and field which is what my grandpa did when he was in school, too. He loved that I followed in his footsteps in that way. My event was the 200-meter dash. We would drive down to the high school track and he'd sit on the side benches and time me and critique my sprinting style.
The parts of a chronograph watch.
Not my grandpa's but another older chronograph.
“He loved that I followed in his footsteps that way.”