With the Calibre 400 Series we wanted to showcase the whole movement, which was inspired by what we call the Joy of Mechanics. Calibre 400 Series is a product of the Oris Movement Creation Programme, which as of 2023 has produced 10 new calibres in 10 years. Oris watches powered by modified Sellita movements will continue to carry the Red Rotor, which remains a symbol of our love of mechanical watchmaking.