Good post as so many people nowadays seem drawn to the larger size it is a pleasure to see another collector actually consider a smaller size. I have small wrists and have watches ranging from 35 to 44 and wear them all with equal pleasure. I agree that you should choose one or another depending on what you are wearing. For instance if I am in a T shirt then a smaller 35 or 37 is ideal, but if I have a long sleeve on then I will wear my large 44 IWC Port. This larger watch 'fad' is just that and we all know what we will be continuing to wear in 10 years or so. I imagine that my larger IWC will very little wear in my fifties and I shall start to migrate back to my PP 5050 or even the Daniels, which is only a 36. By the way, Roger Smith certainly is playing with current trends as his series 2 is a much larger watch than the Daniels and although they are similar is finish and style, present a completely different perspective on my wrist.
Journe offers 38 or 40 in most of his collection and I am happy to report that, at least in the UK, the 38 in plat is pushed forward as the true collectors watch, the 40 is again a style statement, nothing more.
Buy what you immediately like and never part as it will be a wonderful addition to any collection, the face is so nice that whether it is 30mm or 40mm it would not come off my wrist for some weeks after purchase, and that would be a record!
regards