Okay, from what I can tell...the "mode" button should have the stopwatch timer.
Is this the watch?:

Press the mode button to take you to the stopwatch screen - should have 00:00 showing. The "start/split" button starts the timer, you can press it again during your run to record a split time, basically a "halfway" time (say on an out & back course - when you turn around press it and it will save what time you had then) the split feature is used most of the time to record a "negative split" - to try to run back faster than they ran out. Or you can press it at each mile marker, and it will record each mile time and save it, so you can see what you are averaging pace per mile. The "Stop/reset" button is first to stop the timer, then to reset it back to 00:00 for the next time you run. And I'm thinking the "Set/Recall" button is for setting the time, day, date and the "recall" must be to view stored memory of times. I had one similar to this and I could save different workout times, to go back and compare new times to. Hope this helps you! It's a nice watch.
I have the Timex Marathon watch: it has a stopwatch, 10 pre-set timers, a pulse counter, and an alarm. I like the pre-set timers, say I want to run for an hour, I can choose the 1 hour timer and start running and it will beep several times at the 30 minute mark, so I know I am halfway (great for "out & back" routes). I also use the pre-set 1 minute timer for doing planks - keeps me honest!! lol!
