MB&F · Legacy Machines

Strap for Legacy Machine LM101 Steel / Blue

Integrated bracelet: measurements, the most common questions, and the way to a made-to-measure strap.

Integrated bracelet

The MB&F Legacy Machines 52.SL.BL 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.

Case diameter40 mm
Reference52.SL.BL
FamilyLegacy Machines
MovementMB&F caliber LM101 hours, minutes | power reserve indicator
Year2021
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The Legacy Machines 52.SL.BL, seen from the bench

The Legacy Machines LM101 represents one of MB&F's creations characterized by the LM101 in-house caliber with hours, minutes and power reserve indication. The movement is prominently positioned on the dial, following the brand's constructive philosophy. The reference 52.SL.BL features a technical configuration that emphasizes the display of the mechanical components through a three-dimensional design.

Frequently asked questions

Can I fit a standard strap on the MB&F Legacy Machines 52.SL.BL?

No, the bracelet is integrated into the case itself. A standard strap has no way to attach. For this model I build everything bespoke directly in the atelier, crafting the attachment to match the unique geometry of your case.

How does the bespoke strap process work for this watch?

Come to <a href="/pages/casati-booking">Casati Milano</a>, by appointment. I take measurements directly from the case, study the lug architecture and build the custom attachment that integrates seamlessly. Every piece is hand-made for your specific model.

Which leather do you recommend for the Legacy Machines?

I prefer Mississippi Alligator: it has the robust character and geometric structure that speak the language of this machine. The watch is pure construction, and alligator doesn't compete with that logic—it accompanies it with quiet authority.

How long does a well-made strap last?

A hand-crafted strap lasts 4-6 years of daily wear, depending on how you treat it. Leather ages with grace if you nurture it: a touch of cream every now and then extends life and improves the look. It's not disposable—it becomes more beautiful over time.

Why does the Legacy Machines deserve such careful strap consideration?

Because the watch is suspended in space, movement on display, three-dimensional architecture. It's not an invisible timepiece on the wrist: it's a mechanical sculpture. The strap must disappear, not compete. A poorly crafted attachment ruins the geometry Büsser engineered.

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