aleister wrote:
If you intend to sell your watch when times get worse, be fully prepared from the beginning that it is really bad business. There are a very few watches that increase or maintain their "first-buy-value". Expect to loose 30-50% on what you paid.
Unless you are buying something like a Patek with a limited production run of about 10 pieces, never EVER expect a watch to either make or even just hold it's value in future. Apart from Pateks, and a couple of other very high end LE models, the only other real exception to the rule are some Rolex models at the beginning of their Production run when they are only available in (artifically maintained) small quantities. But even that sorts itself out over time as models become available on the second-hand market.
Buy a watch for yourself and assume you are going to keep it. Yes it will be worth something if you ever need to sell, but you'd be ill advised to buy with thoughts of future sales in your mind.
. And, if you were thinking of putting the purchase on a credit card, I would say "hell no, don't be foolish 
". Take it from someone who has spent their career in Finance.
) When I came to sell it, a watch trader I know said that I'd almost be better off putting a black bezel on it instead as they were holding better value!