I have a 17cm wrist, anything over 42mm diameter looks kinda bulky. I think ill exchange the Invicta and the Braun for another Casio, Seiko or i will try a Citicen watch. These watches were pretty cheap. The Seiko and Edifice were about 100€ each. Fossil~70€, Baby-G 40€ on Ebay, Invicta 50€, Braun 25€ from Aldi and the Casio A168 and the MDC field watch are about 20€ each. The last two are my most worn watches because the are really comfy.
Also, FWIW, my rule has always been this: Every week, I put $100 into my watch savings. I realize that as a college student, you probably don’t have this luxury. However, I assume you have some sort of income, and what you can do if you’re serious about collecting is, make some type of budget. Even if it’s $10 a week. And instead of impulse buying something that you won’t wear in a year, you’ll be able to save up for something that you’ll give to your children someday. Good luck to you.