Watch Case Back Opener
Watch back remover for snap on watch cases. Most watch cases can be easily opened in order to change the watch battery, by inserting the blade of this handy tool between the case and the back plate and twisting to snap open the case. Look for a slight raised lip, often positioned close to where the strap attaches to the watch.
If the back of your watch has 6 slots arranged around the perimeter of the case then you need to use the Screw Back Watch Back Removing Tool.