That’s a great (and very hard) question. Generally speaking the more expensive the watch the more flexibility there is in the brokers fee. In addition it all depends how much work the broker is going to have to do – is the watch an obscure watch that few have heard of with little demand needing much more promotion by the broker? While it’s possible to negotiate a low fee for a high value watch, no broker is going to sell a £250 watch for 5%. This is why the negotiation of fee is completely related to what the broker is selling on your behalf.