Pre-owned AP in Hong Kong: Recommendations?

[bawlin]

In Hong Kong for a few days, and thinking of finally pulling the trigger on a 15400OR (or perhaps even a 26331ST).

Just wondering if anyone has any recommendations on shops to check out? Anyone who's been to Hong Kong before knows this city is sensory overload in nearly every way imaginable, but in particular when it comes to watches (due to the sheer number of shops).

Thanks in advance!