There are three levers: Red, White and Green. The green starts the stopwatch. Click it and it begins. The red pauses the stopwatch. Click it and it pauses. The white resets the stopwatch. Click it and both hands will go back to zero. There is no "Lap" lever on this thing (because this is an analogue stopwatch)
Inspired by Junghans. This clock does not have ticking sounds. https://scratch.mit.edu/projects/652214056/ That link above takes you to the next clock after this one, the Junghans Analogue Stop-Watch!