Mine is the fetish and hand-wringing associated with allegedly improper second hash marks at the periphery of a dial. For example, if a watch's movt. beats at 8bps and the dial shows 5 evenly spaced hash marks, many reviewers get their bespoke shorts into a knot.
This scenario is sometimes described as being in error but I don't see it that way. The dial just chooses one level of granularity for display, and the seconds hand via the movt., another. Both are correct. What of the Movado Museum watch? Are all times other than noon or midnight 'wrong' somehow?
I didn't necessarily state my case very clearly, but hopefully you can see what I'm getting at.