I had the same problem with mine that I got in 1978. To set the digital display's time, date, alarm, etc. you pull the crown on the right side of the watch half way out unlike pulling it all the way out to set the analog. Once you have pulled the crown half way out, you twist (you might hear a clicking noise when spinning the crown) to set the time, alarm, date, etc. To turn one of the alarms off or on you go to the alarms using the mode button on the bottom left. To turn the alarms on or off you pull the crown half way out and push it in again. To turn the hourly chime on or off you press both of the buttons on the left side at the same time until you hear a tone and then release. To set the analog you pull the crown all the way out and twist the crown to set the hands and then push in the crown. To use the light you press the top left button (doesn't work during stopwatch mode).
B.B., June 2010