When you purchase an Oris watch, we encourage you to sign up to MyOris, the official Oris owners’ club. When you sign up, you can extend your warranty by adding your watch to My Watches. From two to three years on most watches, to five years on Oris Calibre 100 Series watches, and to 10 years on Oris Calibre 400 Series watches. It is also possible, that the authorised Oris dealer already added your watch to your existing MyOris profile. In this case their is nothing you need to do. You will receive an email with the warranty extension information.