The only watch you can be more than 50% sure of not losing too much money on for £4000 is a Rolex stainless steel sports model i.e. Submariner or GMT Master II.
My navitimer made me nearly a grand, fair enough I got it at a very favourable dollar rate but there are a couple of other makes to consider if you don't jump on the obvious 'rolly rollercoaster' (even though I was already on said coaster anyway
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