I have a 1987 Japanese made sunburst '62 re-issue jazz bass. The tuners and bridge are incorrect for the supposed reissue year, and I replaced them with the correct style reverse Klusons, and allthread bridge. The fit and finish are second to none. The bass is a superior instrument, in my opinion, to any of the Mexican made basses I have seen, played, or worked on. The MIM basses have noisy pickups on most of the examples I've heard as well. The MIJ's are very reasonably priced either new from Ishibashi, or on the used market, mine was only $410.00 a few years ago on E-bay with a nice hardshell case!
I've been repairing basses and guitars for going on 38 years now. All the 1950's and 1960's Fender basses, up to approximately 1966, when CBS began to change specs, had Kluson reverse wind 'elephant ear' tuning machines with a small rivet to hold the head to the shaft. By the way, these are the exact same tuners you'll find on Kay upright basses, I wonder where Leo got the idea for the tuner choice for his basses? Hmmm.... In '66 all j-basses- but NOT precisions, went to 'lollipop', or 'egg' tuners. These were the same mechanically as the older tuners, but had a different 'head'. I have seen these tuners in a few rare cases on later p-basses, circa '68-'69. A friend has a rare Fender 5 string from about this era, and it has mega-rare short shaft Kluson reverse 'egg' tuners...one is missing, and I don't think he'll ever find another to replace it! About 1968, the tuners on all Fender basses changed to the non-reverse wind Klusons with the rivet-less large elephant ear. I prefer the reverse pre-CBS style tuners, I love the way they look on a Fender bass.