Two Different Stopwatches (take your pick)
             
 Timer continues running on Pause
 Mark 1
 Mark 2
 Mark 3
 Mark 4
 Mark 5
 Mark 6
 Mark 7
 Mark 8
 Mark 9
 Mark 10

Source (unmodified)
↓ Stopwatch by Kåre Byberg
Timer stops on Stop (cumulative)