Not strange at all, DARLING!
That is the RR-700, and I have had one since May 1986. Two minor repairs, and still going strong.
It's been the easiest microwave I have ever used, and when I was a private duty (party) cook, I used a lot of them.
If it were closer, I'd buy it, but it is too far away, and would cost a lot to ship, because it is a real Radarange, and about 80 pounds +/-
Lawrence/Maytagbear