Strap for Horological Machine N°3 HM3 Moonmachine Black

No. The 34.BTL.B's lug attachment is proprietary and integral to the case design—it does not accept standard straps. The solution is a strap crafted to measure for your specific watch through <a href="/pages/casati-booking">Casati Milano</a>, who perform direct measurement of the lug geometry and create the strap in their atelier.

The craftsman at <a href="/pages/casati-booking">Casati Milano</a> receives your watch during the initial consultation and documents every aspect of the proprietary attachment: seat dimensions, anchor depth, case angle. The strap is then constructed entirely bespoke, with lugs and keepers sized precisely to your individual 34.BTL.B's geometry.

Leathers with visible grain and marked texture dialogue coherently with the aesthetic of an exposed machine in titanium. Vegetable-tanned hides with natural patina development, or structured "industrial" leathers reflect the conscious vulnerability of the design. Avoid uniformly polished finishes: the strap should teach the 34.BTL.B to age together.

A strap in vegetable-tanned leather, constructed with traditional atelier techniques, endures for decades with ordinary care—occasional cleaning, leather conditioning, monitoring of anchor points. Longevity depends on use and leather type, but quality craftsmanship ages by developing patina and character, not decay.

The HM3 "Frog" (2012) breaks every watchmaking convention: it is not a discrete instrument, but a three-dimensional sculpture. The two sapphire domes function as amphibian "eyes," the movement orbits across multiple vertical levels, the titanium case is exposed architecture. Maximilian Büsser designed a horological machine—not a watch—where form and function are conscious antagonists that generate visual meaning.