a Ricoh Singlex was my first japanese camera on 1966 !
that was a good machine,with a CDS lightmeter,with a fabulous
F1.4/50mm Rikenon, i think that was a Tomioka made (today Kyocera)
Nice ! Good luck for buy !
Good solid cameras from the 60's. It shouldn't matter if is Ricoh or Sears Roebuck, they are after all the same cameras.
Also keep an eye out for the Focal 1000 TLX. Same camera.
Most have the M42 lens mount, but one did come out with a Nikon-F mount.