What should I do if I need a new battery?

You can change your battery at any reputable watch maker. We recommend that you do not change a battery where they cannot check for water resistance after opening the back of the watch. Some watch makers don’t have the right equipment and if they do not have the experience they may damage the movement. It is enough to touch the electric coil accidently with tweezers to cause the movement to stop. The coil is not repairable and in such a case the module unit will have to be replaced.