In the past wristwatches were much smaller. Right now whenever you look it's 40, 42 mm even for women's models.
I'm looking for recommendations of men's wristwatches with classy look and case diameter of no more than 34 mm. Price does not matter, let's just have a look at them at first. I guess though there is no need to post extremely cheap low quality watches.
In my opinion what would define such watches as men's in the wideness of a strap or bracelet. If it's thin then the watch is women's, if it's wide enough it looks men's.
This is a snapshot from a film from 1960, an example of what I'm talking about.