No you wont find that model anywhere anymore, its pre 93 for sure. I think Sherwood called the series the "Sigma series" and it came in a number of versions, 200ft and 150ft depth gauge, with that small digital timer or with a Source or Encore computer and obviously in a four gauge configuration with a compass. I stand corrected as its years ago but my memory tells me it was model No CG4301.
Nothing wrong with the combo if the gauges still work and the hose is good, I would certainly use it. As Texfraser says, if the little digital timer is dead its almost impossible to ressurect, and you wont get another to fit that combo, modern timers are of a much bigger dimension, but hey, just take it out and use as a two gauge combo, I think its perfect.