Switchmaster SM905 stoped working?

Hi can any1 tell me where i can get a vialble replacement for my Switchmaster SM905. the Dial no longer moves the timer, have to move it by hand through the motion.
Can i replace it with any switch master or do i need the 905, which im sure by now is obsolete
graham smith, October 2009


link Click here to see other fixes for Switchmaster 905.