[. . . ] [. . . ] Many of our watch designs us e special gas kets that create a water tight s eal between the back plate and the watch cas e. The greatest ris k of changing the battery yours elf, or having a jeweler do it, is that this gas ket 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. [. . . ] [. . . ]