Oh I wouldn't put your ambitions of finding some cool watches on the cheap there aside, so long as you are not going to take up residence and do it for a prolonged time. One could easily and safely hunt around, find some stuff to buy and then head out as a tourist. No one would regard you as a threat to their business. It's the expats-foreigners who reside there and do business, especially anything jewelry/watch related that need to watch out who they upset. The massive pawn shop operations there, where there is practically two or three per block, don't like outside competition. Part time deal hunting fun is fine in the Philippines. However I would not suggest Manila no matter what. Leave that place for the Filipinos to rule. If you ever do consider going for vacation then certainly contact us as we have been everywhere in those 15+ years we lived there, and can steer you in the right direction to good watch hunting grounds as well as beach spots for family style vacations.