As mentioned above, I would also recommend the Longines Conquest range, this one below is classy enough for the office and rugged enough for the beach what with its 300m water resistance: -
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My words exactly. If you're looking for "the best all around versatile watch for everyday wear" you just can't beat a classic/dressy sportswatch. I'm talking about the likes of Omega Seamaster Aqua Terra, Rolex Explorer I & Datejust, some (if not most) Grand Seiko models etc. One you can dress up or down, wear with jeans, shirts, t-shirts, sportscoats, speedos, suits... basically anything short of black tie events. I feel that these kind of watches are more versatile than even the dressiest of divers, but of course it all comes down to your personal taste, profession and dress code at work, what kind of clothes you wear at free time and so on.
So in a modern "dressy sportswatch" you would be looking a metal bracelet (which can of course be changed for a leather strap), anything around 36-41 mm size, clean design and at least some WR (50 meters and up) so you don't need to be worried when washing your hands, taking a shower etc. Keeping this in mind some good choices at or around the given budget might include:
Sinn 556 (leans a bit to instrumental watch, but fits the bill)
Sinn 6033 (over budget, but a lovely watch)
Certina DS-1
Certina DS-Podium
Longines Conquest
Longines Conquest Classic
Seiko SARB 035 (well under budget, a very nice piece - now if they only took that cheapish "23 jewels" text out of the dial)
And many, many others.