There are many factors that can influence what your Rolex, Patek Philippe, or Cartier watch will sell for. However, in many cases, your watch can appreciate or, at a minimum, hold on to its value well. It is important to sell your watch with authenticity papers when possible, though selling with papers is not always necessary. In most cases, you can expect your watch to retain its value and selling to an experienced watch buyer can help ensure you get a fair price for your watch.