The Longines 998.2 watch movement is a mechanical movement option that includes an optional gold lever and an escape wheel. It features variations in bridge shapes, although the specific differences between the Longines 998.2, 202, 203, and 205 models are not known. The movement is manually wound and includes sub-second functionality. Additionally, there are both sweep seconds and non-sweep seconds variations available. The Longines 998.2 movement was commonly used around 1943.