At the end of 2018, MB&F launched one of their most aggressive watchmaking machines, the HM9 “Flow”.
In 2021, this Geneva-based brand further launched the new HM9 “Sapphire Vision”. Thanks to the transparent sapphire crystal casing, the HM9 engine is now shown in all its amazing details.
HM9’Sapphire Vision’ is inspired by the design route of cars and aviation in the middle of the last century, and is reminiscent of jet engines in a way. There are four versions, each limited to five pieces: two versions with 18K white gold mirrors Frame with PVD-coated purple or red gold-plated engine, and two versions of 18K 5N + red gold frame, and PVD-coated blue or NAC-coated black engine.
The fake men watch case is characterized by the outer hull of sapphire crystal and precious metal, bent and blistered, and divided into three parts precisely, and sealed by a proprietary combination of patented three-dimensional gaskets and high-tech composite bonding process to ensure Water resistance reaches 3 ATMs (approximately 30 meters / 100 feet).
Two independent balances pulsate slowly at a frequency of 2.5 Hz (18,000 vibrations per hour), providing two sets of timing data, which can be differentially converted to produce a stable average reading.
The bevel gear rotates the energy and information current of the engine by 90 degrees to input the time display on the sapphire crystal dial, and is marked with Super-LumiNova, which can enhance the clarity in low-light environments.
On the contrary, under each balance coaxially, we found two spherical turbines, which rotate freely and become elements of pure visual interest.
The HM9 engine is composed of 301 parts and 52 jewels. It is equipped with a single barrel and can run automatically for 45 hours after being fully wound up.
The size of the watch is 57mm x 47mm x 23mm, and it is secured to the wrist with a red or white gold folding clasp that matches the case with a hand-stitched brown or black alligator leather strap.