I have a referee watch for my kids wanted - and hereby found. It is easy to adjust, the functions are diverse and everyone can use his fondness the time function: can preset time count down (to the playing times of the corresponding provisions) with aktustischem signal free count down or count-up.
The ability mitzumessen game interruptions, in the by the center button on the top of a split measurement is activated, makes the clock for referees very helpful. My children anyway they did not want to miss after the first game.