Hand control: MB&F HM9 Flow’Air’

Although it was the first Horological Machine 9 Flow “Air” launched last year, it did not finally enter its Australian retailer The Hour Glass (Sydney) until this year. Due to unexpected circumstances, we don’t have the usual opportunity to watch it early, so the delay means you have a chance to reconsider it.

MB&F Legacy Machines have a clear design pedigree and relationship, but their Horological Machines are often surprising. The concept by Maximilian Büsser was designed by Eric Giroud. In the case of HM9 Flow, it is impossible not to see the car and aviation style of the HM4 case and dial , If you look forward, there is another brand that likes to call it Legacy Machine 2 (LM2) engine. Two versions of the 9th clock machine were released. “Road” has a rose gold-plated movement and a speedometer-style dial, and “Air” has a dark NAC movement and an aviation-style dial.

Unlike HM4, the titanium alloy Flow is a pure curve with a tapered conical center. The hours and minutes are read from the dial-type dial on the front side. There are two cones on each side. Each cone contains an independent beating balance wheel (each beating is 18VVPH), which can be seen through two of the five sapphire crystal top cover openings of the watch. Their speed is balanced (averaged) by a planetary differential located in the center of the watch, which divides the two balance wheels equally and displays them on the front.

There are two beating balance wheels in the same movement, reminiscent of mechanical resonance (hence the LM2 mentioned), but in this case, they not only beating individually, but also completely separated in space. When two floating pendulums of the same frequency swing on the same plane, resonance will occur. You can learn about it in my article on LM2.

They are associated with a hand-wound movement (the fifteenth MB&F) made specifically for watches, which was realized after three years of development. One of the most eye-catching things about MB&F as a brand is that each of their works, from the concept to the movement to the strap or even the strap, are involved in it under their name, and “F’s friends” participate in it. The author who wrote the text for his press release was appointed. For the HM9 movement, it is the Guillaume Thévenin by MB&F.

It has 301 parts, beats at 18,8000VPH, and has a 45-hour power reserve.

Most of the surface of HM9 Flow is brushed, although the details (such as the seam line that defines the connection between the side cabin and the fuselage and the intersection of the two halves of the shell) have also been polished, and the bottom surface.

The shape and position of the three parts of the HM9 chassis require that the chassis be separated along two axes, and a new patented 3D waterproof gasket (30m) is designed.

The maximum width of HM9 is 57mm, width is 47mm, and height is 23mm. The fixing point of the calfskin strap is on the underside of the case, one end of the strap is cut off on the protruding dial, and the other end is cut off the crown. These numbers seem large, but the combination of the style of the lugs and the way the strap is fixed allows you to sit comfortably even on your small wrist. This may be one of my biggest surprises, it feels comfortable to wear on wrists of all sizes.

When it was released, my initial reaction was that although MB&F has a typical meaning and combines an interest in technology with the playfulness essential to Horological Machines, I prefer these two watches, which are its spiritual ancestors . After using it for about half an hour, my preferences have not changed, including wearing it on my wrist, but I learned to appreciate more things in metal than in photos, because it is a very interesting watch.

One of the people present at the time was someone who knew nothing about the brand and had little interest in watches. Its existence depends on coincidence and timing. This was the first time she saw replica MB&F, and it was also the first time she saw a watch with such an unusual design. I would also add that her wrist is small, and although she would not wear such a large watch, it does cling to her wrist accidentally. After someone’s explanation, I will end with her summary-“So this is mechanical art.”