MB&F Thunderbolt watch: Time in your hand

This is Amazing watch to experience a new way of time.The watch consists of two dials that sit side-by-side.  One displays the hours and minutes (read as a plane's speedometer), and the other displays the engine's power reserve (aka the plane's fuel levels).  Both dials are displayed at the end of a turbine like pod, opposite individual crowns.  This means one crown is for setting the time, the other is for winding the engine.

There are five unique pieces of sapphire glass on the HM4, and the main sapphire plate actually costs more than the entire engine of the HM2.  Think about that.  The engine itself is a marvel, taking over 3 years to develop, consisting of 311 parts, and converting power from a horizontal dual mainspring barrel to two vertically oriented gear trains to display on the dials.  No easy feat.
The HM4 will cost $158,000 when available later this year.  

Horological Machine N^o4 Thunderbolt – Technical Specifications
Engine:
Three-dimensional horological engine developed 100% by MB&F
Manual winding with two mainspring barrels in parallel
Power reserve: 72 hours
Balance frequency: 21,600bph/3Hz
Number of components: 311
Number of jewels: 50

Functions:
Hours, minutes and power reserve indicator
Hours and minutes on right dial, power reserve indicator on left dial
Separate crowns for time setting and winding
Case:
 Grade 5 titanium and sapphire
Dimensions: 54mm wide x 52mm long x 24mm high
Number of components: 65
Articulation of lugs: 3°
Sapphire crystals: 
Five sapphire crystals: 2 x dials, 1 x central case section, 2 x display panels (top and bottom)
  Strap & Buckle:
Black hand-stitched calfskin strap with titanium/white gold custom designed deployment buckle attached to articulated lugs