There are a ton of factors that influence how a watch wears. I suggest doing some research before a purchase, simply by googling the watch and you will most likely find the dimensions and other relevant info that can be deduced from pictures. Also, keep in mind that dial to case ratio(Mido all dial comes to mind as I am writing this), lug length, lug shape and curvature all influence wearability, and that's just the tip of the iceberg.
And for comparison, on my 16.5cm wrist/6,49 inch for our US friends
SKX: 42.5mm without crown, 45.5mm with crown and a 46mm lug length(the latter making it very nice to wear and why I prefer modern Seiko divers)
Caravelle Skin Diver(and why I love vintage):36.5mm without crown, 38mm with crown and I don't remember the lug length. I cannot measure it because I'm waiting for this to come back from the watchmaker's
And this is about how big/small I would go. I would make an exception for a nice, ~30mm vintage dress watch though, but that's a different story.
Hope this helps.
And yes, I believe that your watch is too big but I'm not the one wearing it
😉
P.s I have not messed around with that feature of trying a watch on with Chrono24 by using your smartphone's camera but maybe it would be of use?