MB&F · Legacy Machines

Strap for Legacy Machine LM101 Moser Red

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

Integrated bracelet

The MB&F Legacy Machines 51.SL.MR 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
Reference51.SL.MR
FamilyLegacy Machines
MovementMB&F caliber LM101 Hours, Minutes | Power reserve indicator
Year2020 - 2020
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 51.SL.MR, seen from the bench

The Legacy Machine 51.SL.MR represents MB&F's contemporary interpretation of the classic watchmaking tradition. It is equipped with the LM101 caliber featuring indications of hours, minutes and power reserve visible on the dial. The movement presents a three-dimensional architecture characteristic of the Swiss manufacture.

Frequently asked questions

Can a standard strap be fitted to the MB&F Legacy Machines 51.SL.MR?

No, the 51.SL.MR's strap attachment is an integral part of the case architecture and does not accommodate conventional straight bars. The solution is a custom-built strap fitted directly to the watch by <a href="/pages/casati-booking">Casati Milano</a>, where craftsmen take precise measurements of the proprietary attachment and create a perfectly adapted strap.

How does the bespoke strap construction process work for the MB&F 51.SL.MR?

The atelier <a href="/pages/casati-booking">Casati Milano</a>, by appointment only, examines the watch directly to measure the exact dimensions of the proprietary attachment. The strap is then built with the watch in the workshop, ensuring that every element—leather, buckle, stitching, keeper—is crafted in perfect formal continuity with the piece.

Which type of leather suits the character of the MB&F Legacy Machines 51.SL.MR?

Vegetable-tanned leathers with granular texture and natural patina, such as vintage calf, alligator, and suede, dialogue perfectly with the contemporary and austere aesthetic of the steel case. Neutral tones—black, dark brown, burgundy, grey—emphasize the watch's visual identity without competing for attention.

How long does a strap made by Casati Milano last?

A strap crafted with conscious craftsmanship and superior-quality leathers lasts years, often decades, developing a patina that tells the story of your use. Longevity depends on the chosen leather and conditions of wear, but stitching and buckle require maintenance only after intensive and prolonged use.

Why does the MB&F Legacy Machines 51.SL.MR from 2020 represent a moment of synthesis in Büsser's design philosophy?

2020 coincides with the full maturity of the Legacy Machines' design language, when this family's formal syntax was already firmly established. The 51.SL.MR embodies this balance between mechanical nostalgia and contemporary boldness, uniting the precision of the LM101 calibre with a case architecture where every detail—including the strap attachment—participates in a coherent and instantly recognizable visual language.

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