How do I activate the 10-year warranty on my Calibre 400 Series watch? 26 July 2023 18:49 Updated Watches with Calibre 400 Series movements are guaranteed for 10 years when registered on MyOris. Related articles How do I extend the warranty on my Oris watch? Do I really only need to service my Calibre 400 Series watch after 10 years? How can I make sure my watch is delivering the full five-day power reserve? Does my watch come with a warranty? How is a Calibre 400 Series watch wound?