For the ODYSSEUS, launched on 24 October 2019, A. Lange & Söhne developed the new L155.1 DATOMATIC manufacture calibre. The name DATOMATIC visible on the rotor stands for the date mechanism combined with automatic winding. With a diameter of 32.9 millimetres, the movement – visible through the sapphire-crystal caseback – completely fills the case. It features a unidirectionally winding central rotor with a centrifugal mass in platinum. Thanks to the skeletonisation of the rotor further details of the manually executed, lavish finissage of the movement can be observed.