Franck Muller Aeternitas Mega 4 8888 GSW T CCR QPS

The case measures 42 mm across, 61 mm from end to end and 19.15 mm thick, so the 42 mm figure is the width of the tonneau, not a round diameter. Inside is the automatic calibre FM 3480 QPSE, built from 1,483 components, with separate platinum micro-rotors winding the movement and the Westminster chime.

The time side carries a flying tourbillon without a bridge, a single-pusher flyback chronograph, a secular perpetual calendar, an astronomical moon phase, an equation of time and two additional time zones. The striking side adds a Westminster chime on four gongs with grande and petite sonnerie and a minute repeater, and both the movement and the chime get their own power reserve display.