In order to adjust the size of your watch, we strongly recommend that you bring it to a watch repair shop (ideal option). They have the correct tools necessary to size the watch without damaging the wood. Please note the arrows on the inside the band that identify which way to hammer the pins out of the watch. We do not recommend to remove links on your own and we don't have any tutorials to show you how to.
Please let us know if you have any questions and we would be happy to help.