MB&F · Legacy Machines

Strap for Legacy Machine N°1 LM1 Platinum

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

Integrated bracelet

The MB&F Legacy Machines 01.PL.W 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
Reference01.PL.W
FamilyLegacy Machines
MovementMB&F caliber LM1 hours, minutes, Additional 12 hours Hand (adjustable) | power reserve indicator
Year2014 - 2016
CasePlatinum

Spring bar

Swiss Standard universal spring bars

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

The Legacy Machines 01.PL.W, seen from the bench

The MB&F Legacy Machine No.1 in platinum (reference 01.PL.W) features the LM1 caliber movement developed with Chronode, offering a 72-hour power reserve. The 44mm platinum case houses dual suspended balance wheels visible through a sapphire crystal dome, with inclined 45-degree dials displaying hours, minutes, and a 12-hour secondary dial. Case thickness is 10.20mm and the lug width is 20mm, essential for strap compatibility and visual proportion with the case diameter.

Frequently asked questions

What is the lug width of the MB&F Legacy Machines 01.PL.W?

The MB&F Legacy Machines 01.PL.W features a 20mm lug width. This measurement is consistent across the Legacy Machines family and ensures the correct visual proportions between the 44mm case diameter and the overall architecture of the timepiece. Always verify that your strap is compatible with this measurement before purchasing.

Which strap do you recommend for the MB&F Legacy Machines 01.PL.W?

For the 01.PL.W in platinum, we recommend a black alligator with satin patina or calf leather with vegetable tanning in caramel or dark brown tones. These materials amplify the minimalist elegance of the case without visually competing with the exposed mechanics. For more casual contexts, a cotton NATO or grey FKM rubber are equally valid options. Avoid oversized straps or synthetic leather.

How do I change the strap on the MB&F Legacy Machines 01.PL.W?

The procedure is identical to any watch with traditional lugs: use a spring bar tool to insert the small pin from beneath the lug, gently lift, and slide the strap out of the passant. Reverse the operation for the new strap, ensuring the passants enter completely into the lug seats without force. The 01.PL.W, being a symmetrical case, has no privileged directions.

Are aftermarket straps truly compatible with the MB&F Legacy Machines 01.PL.W?

Yes, any properly constructed 20mm strap—with passants of 2.0mm thickness—is fully compatible with the 01.PL.W. There are no proprietary features on the MB&F lugs. However, we recommend choosing quality straps (certified leather, precise finishing) to honour the level of refinement of the timepiece.

How long does a leather strap last on the MB&F Legacy Machines 01.PL.W?

A quality leather strap—alligator, calf, shell cordovan—on a watch worn 4-5 days a week has an average lifespan of 4-6 years before replacement is necessary. Durability depends on the tanning method (vegetable tanning ages well), frequency of wear, and exposure to moisture or perspiration. Vegetable-tanned leather, whilst requiring maintenance, develops a patina that improves over time. FKM rubber resists longer (7-10 years) but does not evolve aesthetically.

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