I strongly suggest you spend that full amount and get a brand new 8500 Planet Ocean. Even if you spent less, and had, say $1,500 left over, at your age, that difference will get spent very quickly on beer, entertainment, etc. I'd rather spend it all on something that's of tangibly better quality and design. You can get one for right around what you have to spend, after discount off the $6,200 MSRP. I got my first Seamaster Professional at your age, and it is, IMO, the perfect watch to start you on your new life journey. You can wear it with absolute abandon, as I wore mine, and it will still look fantastic a decade on. Skip the TAG. I think you'll be happier in the end. Good luck!
EDIT: Looks like you already bought the TAG? Congrats on the buy, then. It's still a very decent watch, with a strong workhorse movement. Best of luck to you. Now that you've found this place, my guess is you'll be onto your second watch sooner than you think!
