I don't think anyone other than people on watch forums really care about what you wear with formal attire, pretty much anything goes these days, including smartwatches.
Personally, I've wore my Speedy with suits before. I've never owned a dress watch, and frankly don't really see the point of a watch I'll only get to wear less than 5 times a year.
Personally, I've wore my Speedy with suits before. I've never owned a dress watch, and frankly don't really see the point of a watch I'll only get to wear less than 5 times a year.