Also called 'inline lever escapement'. The Swiss lever escapement is the most widely used variety of the lever escapement. It assembles the balance, lever, and escape wheel in a roughly straight line (hence 'inline') unlike the English system where the balance and escapement are perpendicular to each other. While the components are identical, their shapes are not. Swiss levers have the now-ubiquitous T-shaped profile and escape wheels have club-shaped teeth.