First presented in 2018, Horological Machine N°9 nicknamed HM9 "Flow" was inspired by the dynamic profiles of automotive and aviation design from the 1940s and 1950s. The result was a case like no other that echoed the epoch's flowing, aerodynamic lines. This new version encases the movement in a transparent sapphire crystal shell.
Horological Machine N°9 "Sapphire Vision" or "HM9-SV" comes in four editions each limited to only five pieces: two editions with 18kt red gold frame, combined with a NAC-coated black or PVD-coated blue engine, and two editions with 18kt white gold frame, featuring a PVD-coated purple or red gold-plated engine.
An outer hull of sapphire crystal and metal, curved and bubbled and precisely fitted together in three parts, is sealed with a proprietary combination of patented three-dimensional gasket and high-tech compound bonding process. Two fully independent cantilevered balances channel data into a differential that turns two heartbeats into one coherent time-pulse. Ultra-precise conical gears efficiently turn the movement's energy and information current through a 90° angle to feed the time display on a sapphire crystal dial, marked with SuperLuminova.
Technical Specifications:
The sapphire crystal case, with frame in 18kt white or red gold, measures 57mm x 47mm x 23mm. Unique assembly process of the sapphire crystal case parts with a combination of patented three-dimensional gasket and high-tech bonding compound. It is water resistant to 30 meters.
Movement is a Swiss manual-wind in-house MB&F caliber with 52 jewels, 18,000 vph and a power reserve of 45 hours. It features two fully independent balance wheels with planetary differential. Dual spherical propellers under the movement.
Shock-absorbing helicoidal springs linking the movement to the case
Hours and minutes displayed on a vertical sapphire crystal dial with anti-reflective treatment and SuperLuminova on the numbers and indeces.
Total of five sapphire crystals treated with anti-reflective coating: three crystals for the main components of the case, one crystal covering the dial, and one crystal for the dial itself.
It comes on a hand-stitched brown or black alligator leather strap with an 18kt red or white gold folding buckle.
MSRP is 420,000 Swiss Francs.
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