swjoseph
512
I see classics from some important houses
Welcome to Watchprosite and I am sure you will find great people who share your passion here!
Among those three I like the IWC Portugieser very much, one I'd love to own.
To answer you question, a Rolex GMT or IWC Big Pilot will be the obvious choices but if you want to shake it up a bit, GO Navigator Perpetual would be the one I have lusted over.
Joseph