Even my track coach 15 years ago they had: the bulk stopwatch. Unfortunately, I had to try a lot of stop watches and then but to grab a little deeper into their pockets and buy this stopwatch. She is the only one in the segment in which you can take an intermediate, the clock continues to run but in the meantime, a line for the round displays. Ideal for lap times athletes purely to roar. Also very good for tempo runs: Ideally tactile, easy to use, robust and a must have for all coaches. With that thing around your neck to know other "insiders" here's a pro at work.
Has my old coach 20 years ago his stopwatch all yet and which were not then quite new.