Men's SEIKO 6105-8000 "Transitional" Version Resist/Proof June 1970 -- $1400
There was a very short run of "Transitional" divers when they went from Proof to Resist and some of the ones in those short months had mismatched dials and casebacks. This is one of those. The "Resist" dial is rare on the 800x, this is even rarer.
A very nice example from June 1970. All original, keeps very good time, and everything functions properly. An unfortunate name engraved on the back but otherwise a really clean example. Comes on one of my v.2 19mm waffles ($39).