quattro[Moderator]
18374
Grand Seiko ref. 6186-8010T VFA
How cool is this one?
VFA, above the 6 o'clock index, means 'Very Fine Adjusted'. And the logo beneath is the one of the Suwa Seikosha facility.
As far as I've understood, the first number of the reference printed on the dial identifies the movement (6186) and the second the case design (8010).
Best.

credit: @45gs_fan