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The new Horological Machine N°6 Final Edition comes in steel, and is available in a limited edition of 8 pieces.

Following the case-material precedent set by Legacy Machine N°1 Final Edition, HM6 Final Edition is presented in stainless steel, a fittingly robust and durable material to memorialise the last outing of this series. The body of HM6 Final Edition is deeply grooved with polished lines that stretch from the turbine pods to the hour and minute spheres, contrasting sharply with the satin-drawn main surfaces.

The temperature of a star determines its colour, with the hottest stars appearing bright blue due to their higher radiation frequency. Appropriately, this shade features prominently in HM6 Final Edition. The platinum oscillating weight,
visible through a sapphire crystal pane on the underside of the case, has been given a blue PVD coating. The hour and minute spheres are also in this arresting hue, with numerals and markings standing out in thickly applied Super-LumiNova that luminesces light blue.

The hour and minute spheres are oriented perpendicular to the rest of the engine to facilitate readability, and are driven by conical gears to ensure that this unusual configuration still provides the necessary precision in displaying the time.
At the opposite end of the HM6 engine, twin turbines create air resistance that protects the automatic winding system. The engine of Horological Machine N°6, comprising 475 components, took three years of research and development
to realise – almost as long as the entire lifespan of the HM6 series itself.

Unlike other flying tourbillons, which safeguard chronometric performance by keeping the rotating escapement as close to the main body of the movement as possible, the flying tourbillon of the HM6 engine is distinguished by its extreme height, a mechanical and philosophical challenge equal to the audacity of the overall HM6 design.

Time is displayed through two rotating hemispheres, marked separately with the hours and minutes. These hemispheres are milled to paper-thinness to reduce the torque demand on the mainspring barrels and extend the power reserve to its maximum length. Additional mechanical and visual complexity is offered by the positioning of the hemispheres such that they rotate perpendicular to the rest of the geared elements in the HM6 engine. Conical gears are employed to achieve this angular translation without compromising a single iota of precision engagement.

A space-worthy craft would not be complete without multiple security features and guards, and the automatic winding system of the HM6 engine is equipped with turbines that act as a winding buffer. Two sets of curved fins provide the necessary air resistance to keep the winding rotor within a safety zone of oscillation speed, further enhancing the longevity of this complex 475-component engine.

Horological Machine N°6 is the fourth Horological Machine by MB&F to receive an edition to formally mark the end of series production. Previously, HM2 (2008-2011), HM3 (2008- 2015) and HM4 (2010-2013) also received Final Editions.

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