After 10 years and 15 different clocks, the L’Epée 1839 X MB&F Albatross is by far the most technically audacious co-creation by the two companies. Totalling a whopping 1520 components, Albatross features a striking hour function – chiming both the specific hours on the hour and a single strike on the half-hour – and an automaton composed of 16 pairs of propellers that launch into action every hour. The clock’s technical specifications are impressive: 1520 components, 17kg, 60cm long by 60cm high and 35cm wide. The aircraft springs into action as the clock strikes the hours and prepares for take-off with its 32 rotating propellers that whirl for about seven seconds. Inside the aircraft are two movements and two winding systems; one powers the time and striking hour, thanks to two separate barrels, while the other provides the energy for the propellers, powered by a third barrel.