I am in exactly the same boat and have an appointment with Goldsmiths next week. Apparently they had the Speedy on discount earlier this year, so your chances are good.
On a previous thread, where I was asking advice, one of the posters suggested aiming for a 20% discount as standard.
Regarding the price increase, Omega boutique in London confirmed to me last week that prices are increasing this September (although “not by much”). Hope this helps.
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