Hi there,
watchwise, world-trade center is nice,
many small dealers boothes w. nice used premium watches.
Very cool is:
Chatuchak Weekend Market is the largest flea market in Thailand, and largest of the world. It covers over 35 acres and contains upwards of 15,000 stalls. It is estimated that the market receives between 200,000 and 300,000 visitors each day. Most stalls only open on Saturdays and Sundays.The market offers a wide variety of products including clothing, accessories, home decor, art articles, Thai handicrafts, religious artifacts, collectibles, foods, and live animals. The asking price for the goods sold here is already cheaper than other places in Bangkok so do not expect hefty discount off the items that you would like to buy.