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New: MB&F Horological Machine 9 ‘Flow’

by Peter Chong on September 30, 2019
Overview
Brand

MB&F HM9 "flow"

Complication / Type of Watch

Horological Machine

Recommended Retail Price

CHF 188,000 + VAT in red gold.
CHF 168,000 + VAT in titanium

MB&F extends the HM9 model line with two new models in titanium and red gold. One sporting an aviation inspired dial, called the Air, and the other an automobile speedometer inspired dial, aptly called Road. Introducing the MB&F HM9 “Flow”.

Press Release

Presenting Horological Machine N°9 ‘Flow’, inspired by the dynamic profiles of automotive and aviation mid-century design.

The HM9 Air version.

MB&F HM9 “Flow”

Reminiscent of a jet engine, a highly complex case in alternating polished and satin finishes encloses an equally complex manual winding movement, developed fully in house. Independent twin balance wheels beat at a leisurely 2.5Hz (18,000bph) on each flank of Horological Machine N°9, visible under elongated domes of sapphire crystal. A third pane of sapphire crystal on the central body reveals the gearbox of the HM9 engine: a planetary differential that averages the output of both balance wheels to provide one stable reading of the time.

HM9 Air.

Sitting perpendicular to the rest of the HM9 engine is the dial indicating hours and minutes, driven by conical gears that ensure precise engagement even when motion is put through a 90° planar translation. The winding and setting crown is located on the rear of the central body, its deep fluting providing ergonomic grip as well as aesthetic coherence with the overall design.

HM9 Road.

Two satin-finished air scoops are mounted alongside the pods containing the oscillating balance wheels, evoking the raised vents that allow continuous airflow to high-performance motor engines.

HM9 Flow treads the path first opened by the HM4 Thunderbolt and subsequently by the HM6 Space Pirate, utilising a geometrically complex combination of milled case elements in both sapphire crystal and metal (grade 5 titanium and 18k red gold). However, HM9 goes beyond its predecessors, redefining what was thought to be possible in case design – illustrated for example by a patented three-dimensional gasket ensuring water resistance.

HM9 Flow Road.

Quite naturally, HM9 Flow was therefore declined in two versions, drawing their inspiration from the two main sources: A “Road” version with a speedometer-style dial; an “Air” version with an aviator-style dial.

The Horological Machine N°9’Flow’ was launched in 2018 in two limited titanium editions of 33 pieces each: the “Air” version with darkened movement; the “Road” version with pink gold treated movement.

In 2019, MB&F presents two new limited editions in 5N+ red gold with 18 pieces each: the “Air” version with blackened movement and rhodium-plated balance wheels; the “Road” version with rhodium-plated movement and red gold balance wheels.

HM9 Flow – Technical specs Horological Machine n°9 ‘Flow’ is available in two versions:

‘Road’ version with a speedometer-style dial; ‘Air’ version with an aviation-style dial. Each version is available in titanium (two editions of 33 pieces each) or in red gold (two editions of 18 pieces each)

Engine
Manual-winding in-house movement
Two fully independent balance wheels with planetary differential
Frequency: 2.5Hz (18,000bph)
Single barrel with 45-hour power reserve
301 components, 52 jewels
Hours and minutes on vertical dial display
Case
2 launch editions in titanium grade 5, limited to 33 pieces each, with a NAC movement (“Air” version) or red gold (“Road” version); and limited editions in red gold 5N+ of 18 pieces each, with a NAC movement and rhodium-plated balance wheels (“Air” version) or rhodium-plated movement with red gold balance wheels (“Road” version)
Dimensions: 57mm x 47mm x 23mm
Titanium editions: 43 components, red gold editions: 49 components
Water resistant to 3ATM (30m); assembled in three segments with patented three-dimensional gasket
Sapphire crystals
Five sapphire crystals treated with anti-reflective coating
Strap and buckle
Hand-stitched brown calf-leather strap with custom-designed titanium or red gold 5N+ folding buckle

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