MB&F · Horological Machines
Strap for Horological Machine N°8 HM8 Moonmachine 2 Red Gold
Integrated bracelet: measurements, the most common questions, and the way to a made-to-measure strap.
Integrated bracelet
The MB&F Horological Machines 81.RTL.B is designed with a bracelet integrated into the case. For a compatible made-to-measure strap, the Casati Milano atelier builds it on your watch.
The Horological Machines 81.RTL.B, seen from the bench
Frequently asked questions
Can you fit a standard strap on the MB&F Horological Machines 81.RTL.B?
No, because the lug attachment on this model is integrated into the case and does not follow universal measurements. The solution is to have a bespoke strap constructed specifically for the geometry of your watch. <a href="/pages/casati-booking">Casati Milano</a> performs this sartorial work by appointment, surveying the attachment points directly from the case and assembling the strap with manual precision.
How does the bespoke strap creation process work for this model?
The artisan conducts a direct survey of the integrated lugs, measuring distances, angles, and relative positions. The strap is then constructed on a pattern matched to your case, ensuring millimetre-perfect fit. The process requires multiple fitting sessions in the workshop, so the final result is ergonomic and aesthetically coherent with the case design.
What type of leather suits the character of the MB&F Horological Machines 81.RTL.B?
The HM8 Can-Am references 1970s motorsport aesthetics and demands leathers that preserve visible texture and grain: vegetable-tanned leather with natural patina, ostrich leather with recognisable granular structure, or matte crust that does not simulate artificial finishes. Colours should dialogue with satin-finished titanium (greys, blacks) or rose gold (warm browns, bordeaux, cognac). Mirror polishes are inadvisable: this watch deserves leather that ages authentically over time.
How long does a properly constructed strap last on a watch of this calibre?
A strap realised through sartorial methodology, using quality vegetable leather and traditional couture, has a lifespan exceeding 10–15 years of daily wear. Longevity depends on regular maintenance, humidity exposure, and leather choice. A well-made strap can be restored and regenerated over time, indefinitely extending its useful life.
Why does the MB&F Horological Machines 81.RTL.B require a different approach than other luxury watches?
Because its asymmetrical case and complex internal movement (HM8 Moonmachine) determined integrated lugs that do not follow industrial standards. This watch is constructed according to sartorial logic even from the mechanical viewpoint: the strap must complete this philosophy with identical artisanal rigour. It is the only path to obtaining an accessory coherent with the watch's design and constructive vision.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only