depends on your budget then. If you don't mind sharing your budget, it'll help a lot.
if about 10k, then probably the evergreen rolex submariner. becos along the way there is bound to be many sh*t-sayers telling u to buy a Rolex, why not a Rolex, your watch is lousier than a Rolex.......etc. Unless you can tahan these, then just get a Rolex

I did......for 8yrs until I gave in.
The other one I'd recommend is the Cartier Santos100. It wasn't a watch I liked when I bought it (the missus do) but I grew to love it. Omega moonwatch is probably another one.
next question: is branding important?
Seiko has many wonderful watches. Some of the microbrands also has many wonderful offerings. Maybe the gurus here can advise better.