Eek, sorry, I didn't manage to check stock on that one — I was told they were pretty low on the stainless steel, especially the gold colour (40mm only with the Milanese Loop, for example), but didn't see the aluminium. The staff outside can check stock before you join the queue and reserve one if they have it though.
Thanks appreciate your response.
I just walked to regent street and the walk in que is massive!
Going to have to try another day now.