Safely nestled in the now smaller case, we find Tudor's METAS-certified Master Chronometer MT 5450-U, an automatic COSC-certified 4
link Hz movement that offers a local jumping "flyer" GMT complication that follows the
link function set of the original 41mm BB GMT. The power reserve is 65 hours, and the movement is rated to keep time to within -2/+4 seconds a day and magnetic resistance to
link 15,000 gauss.