A simple, elegant dial. No dial openings - they're often not great when it's a tourbillon and they're just naff when it's a regular escapement. Maybe a sub-second at 6 o'clock. No writing or plaque needed except the name of the manufacturer.
A steel case. Smooth. Classical.
Then you turn it over and there is this cool movement visible through the display back. Ooh, I have an idea - how about a hinged solid case back?
Best
E.