Diver's watch - Donald Glover - Mr. & Mrs. Smith
The watch has a steel case, black dial and black bezel with diver markings. It looks like the watch has a nylon strap. The watch worn by Donald Glover does seem to have subdials, indicating this is a chronograph watch.
If you have a better image of the watch in the series, or know in which episode the watch is worn, send a message here so perhaps the watch can be identified.