The phrase "seat bench" basically refers to a piece of furniture that is used for sitting. It is a long and usually narrow bench-like structure designed specifically for seating multiple people at a time. Full definition
The new long - wheelbase sedan comes with a high - comfort rear seat bench developed specifically for this model. (press.bmwgroup.com)
The two - seat bench in the second row is on the passenger side, so the single - seat unit is on the driver's side. (motoring.com.au)
We went with a very simple shape with one long seat bench and two back cushions, slim arms with an inside waterfall edge and straight wood legs. (stylebyemilyhenderson.com)