[. . . ] [. . . ] Many of our watch designs use special gaskets that create a water tight seal between the back plate and the watch case. The greatest risk of changing the battery yourself, or having a jeweler do it, is that this gasket will not be replaced properly. In addition to ensuring that your watch is water tight, our service centers will clean the components and replace damaged parts. Customer feedback on the price, duration and headache of this process has prompted us to start putting user serviceable battery hatches in our watches whenever possible. [. . . ] [. . . ]