Yeah, I agree with Phil. It sounds like the seller is saying you can hear the aperture ring plus its focus is smooth.
If the following info is not new to you just let me know. But another thing about Pentax 6x7 lenses is there are generally 3 generations of them plus some M* versions. Lenses will typically have Takumar, 6x7 or 67 on them. So a SMC Pentax 67 55mm f4 lens is not the same as a SMC Pentax 6x7 55mm f4 lens, for example. The 67 is a newer generation. They look similar but have some housing differences and they have a different optical design. This is NOT true for all the 6x7 vs 67 lens generations. In fact only a few changed their optical design.
Knowing this can help you purchase lenses a little more wisely. That is, if a 67 generation lens costs more than say a 6x7 or Takumar generation and the only difference is cosmetic changes you can decide if the newer generation is worth the extra expense or not. You can review all the different Pentax 6x7 lens generations and a rating relative to other Pentax 6x7 lenses in this
Pentax 6x7 Lens Guide