Strap for Horological Machine N°9 HM9 Flow Air Edition Red Gold

No, the bracelet is integrated into the case and the attachments are not standard. A conventional strap simply won't fit. For this model I work at <a href="/pages/casati-booking">Casati Milano</a>, where I craft the strap directly onto your architecture, made to measure.

I meet you at <a href="/pages/casati-booking">Casati Milano</a>, by appointment only. I study the case in person, take precise measurements from the lugs, understand the angle and geometry. Then I craft a strap built specifically for your watch.

I prefer Mississippi Black Alligator. This MB&F has a mechanical character, a constructive power: the deep grain and contrast of black alligator honour that rawness. If you want something that evolves over time, natural Barenia develops a patina that pairs beautifully with the machine's radicality.

It depends on how you wear it and how you care for it. On average, a strap in quality leather lasts 4–6 years of daily use. The best leather ages: it develops character, small creases, a story. Occasionally wipe the strap with a damp cloth and let it breathe. A good strap isn't in a hurry to die.

Because a Horological Machines is not a traditional watch. The three-dimensional geometry, the sculpture of the case, the exposed movement—everything rejects standardisation. Fitting it with a generic strap would be like trusting the sculpture to compromise. It deserves the same rigour Büsser poured into designing it.