I just created a stop watch simulation similar to the above picture (But not exactly the same).
Let me know if this is what you want. (You did not specify the functions you need!)

/htdocs/ntnujava/ejsuser/2/users/ntnu/fkh/stopwatch_pkg/stopwatch.propertiesFull screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
Download EJS jar file(1215.5kB):double click downloaded file to run it. (12 times by 10 users) , Download EJS source (11 times by 5 users) View EJS source