Thanks for all you guys useful advices ! They are really helpful.
I know it's better to go to an official shop but the model my Dad wants [size=-1] ( the green one ) is really rare now and can't be find in shops ~~
Maybe you can try to ask the seller to trade at Jardine Hse (The svc ctr of course) and have the watch check'd there, I think that is the most secure way.:):)
btw: Is that Submariner with Green Bezel?? (Wow... limited edition wor....):shiny::shiny:
And I saw it at a secondhand shop located at G/F of Sino Plaza (Shun Wo) Think you must know which one (But I don't trust that shop too much...)