While Dulles Express may escape your notice, situated as a kiosk in the Dulles Town Center mall, its service will not. Whether you need a battery changed in your watch, or something more complex, Dulles Express is equipped to handle your needs. I have had numerous watch batteries changed there, quickly and cheaply, and due to its location in the mall, there is plenty to do while you wait. In addition, if you need more complex work done, such as parts replacements, they are able to send it out for work. A very reasonable place to see your watch needs met.