Hi Phaedo,
Have you thought about an Omega Seamaster Professional? I have a genuine one; its this one but with pre-coaxial movement (http://www.omegawatches.com/index.php?id=286&details=1&ref=22208000&no_cache=1). It's a great all round watch and wears well with both suits and on more casual occasions. And it's a great size; its 41 or 42 mm in diameter but relatively thin so good for shirt cuffs.
Cheers,
RD.