Being able to start and stop a chronograph/stopwatch to time events without having to look at it whatsoever can be life-saving at best, amusing at worst. Even a

Being able to start and stop a chronograph/stopwatch to time events without having to look at it whatsoever can be life-saving at best, amusing at worst. Even a watch with a simple minute-gradiated bezel is so much better than relying on my memory to remember a start time.