MB&F · Legacy Machines

Strap for Bvlgari Legacy Machine FlyingT Allegra Pink Gold

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter39 mm
Reference05.RSL.SB
FamilyLegacy Machines
MovementMB&F caliber LM FlyingT Hours, Minutes | Tourbillon Escapement
CasePink Gold

Spring bar

Swiss Standard universal spring bars

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

Straps for the Legacy Machines 05.RSL.SB

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Legacy Machines 05.RSL.SB, seen from the bench

The Legacy Machine 05.RSL.SB represents one of MB&F's contemporary creations in the haute horology complications segment. The watch features the in-house developed LM FlyingT caliber, equipped with a flying tourbillon and hour-minute indication. The mechanics are characterized by a three-dimensional layout typical of the brand's Legacy Machines.

Frequently asked questions

What is the lug width of the MB&F Legacy Machines 05.RSL.SB?

The MB&F Legacy Machines 05.RSL.SB features a lug width of 20mm. This measurement is determined by the proportions of the 38.50mm case and represents the standard specification for this collection. Always verify the lug width before ordering a strap to ensure perfect compatibility.

What type of strap is best suited for the MB&F Legacy Machines 05.RSL.SB?

We recommend an alligator strap with vegetable tanning for the MB&F Legacy Machines 05.RSL.SB, as it complements the austere construction of the rose gold case. Italian calf leather and shell cordovan are equally excellent choices. Avoid oversized straps: the sculptural richness of the case deserves a strap that does not visually compete.

How do I change the strap on the MB&F Legacy Machines 05.RSL.SB?

Strap replacement requires a quality spring bar removal tool. Insert the hook underneath the elastic pin that connects the strap to the case lugs, then gently pull outward. Once the pin is removed, the strap detaches easily. Repeat on the opposite side and proceed with new strap installation by reversing the procedure.

Can I use an aftermarket compatible strap on the MB&F Legacy Machines 05.RSL.SB?

Absolutely. Any quality artisanal aftermarket strap with the correct 20mm lug width is perfectly compatible. Milano Straps offers a selection of custom-made 20mm straps that pair beautifully with luxury watches such as the Legacy Machines. Artisanal craftsmanship ensures durability and aesthetics comparable to original equipment.

How long does a leather strap last on a watch like the MB&F Legacy Machines 05.RSL.SB?

Leather strap longevity depends on daily usage and material selection. An alligator strap with vegetable tanning can last 3-5 years with moderate use (not daily wear), whilst developing a beautiful patina. Shell cordovan tends to last longer due to its density and resistance to abrasion. If worn daily, expect strap replacement every 2-3 years.

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