The "spine" of the watch is composed of slats that come together, not unlike what you'd expect to see adorning the rear window of a 70s sports car. You might notice a 70s theme emerging here, and for good reason. Max Busser (the MB of MB&F) takes his inspiration here from the 1970s' optimism and enthusiasm for all things future. Lasers, jetpacks, transistors, microwaves… all on the list. As was the Lamborghini Miura, a super car that embraced the forward thinking form design of the 70s. While the zirconium case does share unmistakable references to the low-slung super car, it is actually a direct homage to the Amida Digitrend.

Like the Digitrend, HM5 also uses a "jumping" hour and minutes display. As with all MB&F creations, development of the "engine" came via the F in MB&F, Friends. In this case, those friends are Jean-François Mojon and Vincent Boucard of Chronode. Sure a jump hour movement may seem like childs play to these two, but there is more than meets the eye. The jumping hours are bi-directional enabling the time to be set both forwards and backwards. Additionally, the movement bridge must support the mineral glass disks of the hours and minutes. The rotor retains the now familiar battle-axe shape seen in other Horological Machines.