Although I worry slightly (what, me paranoid?) that it’s only in my head, I actually do differentiate “Dress” from “Sport” Chronographs. Although I acknowledge that there are many watches that have a foot in both camps (the Daytona and Speedmaster come to mind, as well as the Richard Mille’s). The differentiation is primarily based on size, metal, design and use.
Full on sport chronos should be robust, not be made of precious metals, and should have legibility and functionality as their primary goal. They are used when messing around with balls and mud, or nitrous and methanol.
Dress chronos, on the other hand, are usually in precious metals, possibly in larger cases and legibility is secondary to their elegant or avant-garde appearance. They are used to time how quickly the barista prepares the morning espresso, or how long the car has been parked outside the Cartier Boutique. The Dress Chronograph is the modern day 4x4 / SUV that never sees the mud.
At least in my world …
A