I think 1986 is correct, 1983 is very unlikely. In 1983 just the Squier JV-Series was gone and replaced with the EQ-Series. I'm pretty sure in 1983 all Export models from Fender Japan were still Squiers.
But I'm kind of sure that I saw the '75 reissue in the late 80s in shops in Hamburg, Germany.
The pickup-spacing was always "wrong" as was the logo. Only in recent years some of the '75 RIs made in Japan have the "correct" PU-spacing. Didn't the Geddy Lee always had it?
The newer mexican made Fender 70's RI has the correct PU-spacing but the wrong wood (alder instead of ash).
Fender US changed the PU-spacing in the 70s not because of the sound-difference - they didn't care - but because of the cosmetics. The pickup could be halfway seen when the ashtray was installed. The Reissues never came with an ashtray 'cause 99% of the players would immediately remove them anyway, so why care?
Funny somehow, when Fender US introduced the US made '75 reissue, it had the correct pu-spacing but the "wrong" late 70s logo, too.
Asked, Fender replied it was modelled after the successfull Fender Japan model and this had the period-wrong logo, too. So they kept it.
The new American Vintage Series '74 Jazz has the big period-correct TV-logo.
I own a '96 Fender Japan 75 RI and an all original 1978 Fender Jazz. The MIJ is very lightweight for an ash bass, lighter than some of my alder basses, my US original is a 10 lbs.
The MIJ is great, very great for the money. An update of the electronics and maybe the PUs make sense. Mine has CS60 PUs, but still the original electronics.