According to Sycnhron, the watch needed a power reserve
link that offered a longer duration than the ~40 hours of an ETA
link 2824 (or similar). As such, the Synchron Poseidon employs a La Joux-Perret G100, which is an automatic Swiss-made movement meant to operate as a higher-spec option for watches designed around the 2824 platform. With 68 hours of power reserve, this 4 Hz movement is
link adjusted in four positions.