I found First Class Watches via a Google search. As I'd never purchased from them before, I was a little nervous placing my order even though they had the product I wanted (a men's Hamilton Khaki Field King) in stock and were offering a 10% discount. However, I took the plunge and do not regret it one bit. I ordered late on Friday, it was dispatched via Royal Mail Special delivery on Saturday and arrived today (Monday, 10 Sept). The item is brand new, mint condition and was well packaged.
Overall, I couldn't be happier. I will certainly be using First Class Watches again and wouldn't hesitate to recommend them. BTW: I also called them with regard to another watch that I have my eye on and the customer service I received was excellent.