First Rolex Purchase this Weekend: Advice or Input?

[BAYsic]

Hello,

I am a new poster ready to purchase my first "real" watch this Saturday from the local AD as a graduation gift to myself. I am looking at a new Datejust (Model 116234 or 116200). Not sure how the letters serial numbers come into play, but one that I was looking at started with a "Z" (I believe).

I am torn between two configurations of the Datejust. I am definitely going for a stainless steel with silver face and likely with the white gold fluted bezel. However, I can't bring myself to decide between a face with roman numerals or bars. I like both equally well. The bars seem more classic and conservative, while the numerals a bit more contemporary. I plan on having this watch for a very long time and hope to pass it down, thus my initial inclination is towards to the bars. However, I am young and will be wearing this watch both when I start work (large conservative law firm) and when I am hanging out with friends (casual dinners, picnics, etc).

And what about bands? I love the look of the jubilee with the fluted bezel. But I recently stumbled across a picture of a smooth-bezeled Datejust with an oyster band. It looked rugged yet refined and I found it especially pleasing. That particular configuration could work great with a suit or with a polo shirt and jeans. Should I forego the glitz of the fluted/jubilee band (which, correct me if I am wrong is more formal looking) and go with the more understated smooth/oyster (which I can dress up or down)?

In case I was wrong with my designation of the model numbers, or used the incorrect terminology in describing the different configurations, I have uploaded some photos I found on eBay of the different styles I am considering.

Any thoughts or advice? Thanks!