Re: Standard case...high serial number.
Hello folks,
my opinion about that watch is, that it was a transitional case Autaia and has been badly polishes, as Paolo already said. The Transitional 3646 currently available at Casowatches also has a 82xxx serial number and looks all correct to me. From what I know, these rarer 3646 Tachy dials have mostly been installed in the past few years and weren't "born" in the watches they are currently in. So my best guess is, that we have a badly polished transitional 3646 with a later installed (rare) dial.
Kind regards,
Manuel