When to ask for next allocation

Hello my fellow Rolex enthusiasts,

I recently received my first (and most favorite) piece from the AD this past month- blue Yachtmaster. While I’m obviously very happy with it, when is it appropriate to ask for the next one? I don’t want to come off as being greedy, however, I would very much like a Starbucks and I see many people getting the call for it recently. Do I go silent for a few months and stay happy with my Yachtmaster or do I drop in, say how much I love it but also hint about the Starbucks?

Along those lines, is there a firm limit on time between allocations or number of watches that can be bought over a 12 month period?