Most of the pre-owned shops in the Klang valley are choosy in buying / taking in watches from the general consumers.
Be prepared to (minus the shock) that they are paying you peanuts for your so-called branded watches on a fractions of your purchase prices. In these scenario, its better that you keep your intend to sell time pieces rather than to dispose them in this manner.
For general perception, if your friendly pre-owned shops were to acquire your precious time pieces, be prepared to look at - (minus) 80-90% off your purchased price, unless yours is in a few brand category worth mentioning....
Good luck.
dc