Yeah, Mamiya TL/DTL. Here's what I found on Camerapedia:

"The later DTL dual-metering models introduced a switch beside the lens mount which allowed the photographer to select between an averaging meter pattern and a "spot" meter (actually a square area marked at the bottom of the viewfinder), with a viewfinder indication of the mode selected. This was a unique innovation for its day. Interestingly, the single metering mode offered by the TL models was the "spot" mode, not the averaging mode one might expect. Thus it was the Mamiya TL and not Pentax who implemented the original meaning of Pentax's Spotmatic brand."