Friday I am going 46-47 st in Manhattan..[/QUOTE]
I would advice you not to purchase from the Diamond District. That's the type of place that only an expert can navigate (I am not one for sure). Only God knows if the watch you'll be buying is 100% Rolex, it may have aftermarket parts etc. IMHO I would go up to WEMPE, the extra $ you'll spend is small compared to the peace of mind of knowing you bought a 100% Rolex and not one from Canal St.
If you are looking just to see whats out there great! I would also suggest that if you are thinking of used you should check the trusted sellers here. Good prices and peace of mind....probably no taxes either
Meantime enjoy the hunt!
BTW what are you looking for?