(The buttons used to be plastic. Now they're wood.)
That's durable. It also does a much better job than any modern food processor, possibly because the motor is four times the size of what you'd get now.
There are 50-year-old cars still in service today. I wouldn't drive one, because I want to take advantage of the tech advancements of the past 50 years. But that doesn't mean cars aren't durable goods.
And even though computing is barely 50 years old, there are 50-year-old computers in service today. I wouldn't use one, because I want to take advantage of the tech advancements of the past 50 years. But that doesn't mean computers aren't durable goods.
This applies even if a 50-year-old car, which predates bluetooth, doesn't have built-in bluetooth. And it applies even if a 50-year-old computer, which predates HTTP, can't load websites.