After a three long years of development high-end watch manufacturer MB&F has released its new stunning model HM4 Thunderbolt. But this isn’t just a watch, it’s a horological machine that was inspired by A-10 plane. This complex machine has two dials: one for the time, one a powers indicator. Titanium case with saphire took over 200 hours of machining and finishing to achieve a desired aerodynamic look. Two mainspring barrels store up to 72hrs worth of power. The internal mechanism is visible trough sapphire glass at the top and bottom. Mechanism consist of the 300-plus components including the regulator and even the screws. For all this luxury you will pay $158,000.