These are indeed a model 70/700 set
Just as James said, these are a 70 or 700 series set.
Throughout the 1960s, one of Sears' best sellers was the highly popular 70 series model which was nearly the same in features every year...infinite water level, five temp combinations, and two speed/three cycle timer selections. The major difference year to year was the restyled console.
But, there was also an "alternate" 70 series model, which was typically an alphabet machine with timer set temps, thus no temp selector. These machines commonly did not have a series call-out on them anywhere, but were always numbered as 700s (or 70s) in their model numbers.
James and I have come to refer to these machines as 700s, as finally in 1969 one of the models finally did have 700 spelled out on the console. These machines seemed "slightly fancier" than a basic 70 to us as their matching dryers usually had full-width doors, which were a sign that you were "movin on up" in the Sears hierarchy.
This is a really nice set. I would surely be tempted.
Gordon