The embedded magnets in the lid and base of our watch box are very small (6 gauss), and the force of those magnets are also small. All modern watches are designed to withstand at minimum 20 gauss, with most able to withstand 60 gauss before magnetization occurs.We've tested the magnets on hundreds of watch brands, including Rolex timepieces and have never once magnetized a watch. We've also sold over 300,000 watch boxes and have never had a customer report a magnetized watch. Rest assured, your watches are safe in our boxes.