The early SV I picked up came with paperwork that indicated it was bought in Japan before the SV was exported. The base plate has "NO TAX" factory engraved in the back corner - similar to items for airport tax-free shops that wouldn't stay in-country. The included English instruction manual is for the "S1-S3" models, with an additional pamphlet marked "SV - Super S2" that begins with this statement: "The new Asahi Pentax SV and Super S2 cameras are so new that they are not yet being exported and the instruction booklet for these new models has not been completed. This instruction sheet is supplied with the instruction manual for the Asahi Pentax S1/S3 cameras to serve you to fully understand the different features of these new models."
So this information is for the first series of Super S2. It notes that the Super came with the "all-new fully automatic Super-Takumar 55mm f2 lens" - so the Super originally did not come with the semi-automatic Auto-Takumar. The SV that this came with had the reversed aperture scale Super Takumar 55 f1.8 - which is about when the same lens was sold as Auto Takumar (but was in transition to the "Super" name).
Information about these years is hazy now, so I was glad to get these original documents with this SV.
I'll try to attach the pdf scan of this supplemental brochure.
SV-SuperS2.pdf