The Excelsior Park 5 watch movement is a manual wind movement with sweep seconds. It belongs to a family of movements that includes the Femga 500 and 502, as well as the Precimax 250, 250SC, 400, and 450. While there is a strong resemblance between these movements, their relationship between the French Femga and Swiss Precimax remains uncertain. Further investigation and examination of samples may provide confirmation. The Excelsior Park 5 movement was primarily used around 1945.