MB&F · Legacy Machines

Strap for Legacy Machine Split Escapement Launch Edition Blue

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

Integrated bracelet

The MB&F Legacy Machines 03.WL.FBL 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 diameter44 mm
Reference03.WL.FBL
FamilyLegacy Machines
MovementMB&F caliber LM2 hours, minutes
Year2017
CaseWhite Gold

Spring bar

Swiss Standard universal spring bars

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

The Legacy Machines 03.WL.FBL, seen from the bench

The MB&F Legacy Machine N°03 (model 03.WL.FBL) features the proprietary MB&F LM2 manual-wind movement and houses it in a 44mm white gold case. This mechanical sculpture showcases two floating balance wheels above the dial and combines traditional watchmaking rigor with contemporary aesthetics. The 20mm lug-to-lug distance is precisely calculated to maintain harmonious proportions between the case and strap.

Frequently asked questions

What is the lug width of the MB&F Legacy Machines 03.WL.FBL?

The lug width of the MB&F Legacy Machines 03.WL.FBL is precisely 20 millimetres. This measurement represents the exact distance between the two case lugs and must be strictly observed when selecting a strap to ensure optimal compatibility and seamless aesthetic integration. Always verify the lug width with a precision instrument before ordering a strap.

Which strap is most suitable for the MB&F Legacy Machine N°03 in white gold?

For the Legacy Machine N°03 in white gold, an alligator strap with traditional tanning is the most elegant choice, resonating with the nobility of the precious metal. Alternatively, vegetable-tanned calf leather develops an authentic patina over time, creating a refined aesthetic continuum. For versatility, a premium canvas NATO offers practicality whilst maintaining stylistic rigour.

How do you change the strap on the MB&F Legacy Machines 03.WL.FBL?

To change the strap on the 03.WL.FBL, use a spring bar tool (a specialised instrument for removing lugs). Insert the thin end of the tool into the small access hole in the lug shoulder, apply gentle pressure to retract the internal ring, then carefully extract the case from the attachments. Reverse the operation to install the new strap, ensuring that the lugs are firmly secured.

Is an aftermarket strap compatible with the MB&F Legacy Machines 03.WL.FBL?

Yes, any strap in 20mm lug width is compatible with the MB&F Legacy Machines 03.WL.FBL, provided it respects standard construction tolerances (±0.1mm). We recommend straps made by certified artisans to prevent accelerated wear. Milano Straps offers bespoke artisanal straps in various finishes and materials, all compatible with this lug width.

How long does a leather strap last on the MB&F Legacy Machines 03.WL.FBL?

The lifespan of a leather strap depends on intensity of use, tanning method, and care. A quality alligator or calf leather with vegetable tanning, worn daily, maintains structural integrity for 3–5 years. The natural patina that develops during this period increases aesthetic value. Protect the strap from excessive moisture and occasionally apply a specific balm for untreated leather.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only