Feel free to remix with different watch faces. I have another time-related project you might like if you live outside the US: http://scratch.mit.edu/projects/42187312/ "Guess the timezone"...
Inspired by a much slicker clock program written by Pavel Boytchev on the LOGO mailing list - see http://www.youtube.com/watch?v=XfBdOg-p_zU Updated to display the actual time :-) (Scratch 2 feature) This simplified the code considerably...