Maximilian Busser and Friends have released their latest work of magic, the MB&F HM4 Thunderbolt Watch. This titanium and sapphire watch is a throwback to the designer’s early years, where an obsession with model airplanes and aerodynamics led to his interest in modern watch crafting. As is true with the other watches from this designer, the new Thunderbolt is an instant classic. More at TheCoolist.