Strap for Legacy Machine LM101 Moser Aqua Blue

The lug width of the MB&F Legacy Machines 51.SL.MS is 20 millimetres. This measurement represents the distance between the metal lugs of the case and determines compatibility with any aftermarket strap. You can verify this dimension using a calliper positioned perpendicularly between the two upper lugs of the case.

For the 51.SL.MS, straps in vegetable-tanned alligator or shell cordovan are recommended: these materials maintain an elegant cross-section that does not conflict with the transparent dome of the movement. Alligator offers a surface with irregular grain that captures light coherently, whilst shell cordovan develops a deep patina over time. Valid alternatives are silk NATO straps and FKM rubber for sporting contexts.

To change the strap: 1) use a strap removal tool or small lever; 2) insert the tool into the metal eyelet holes of the case; 3) gently push outward to release the attachment pins; 4) remove the old strap; 5) position the new 20mm strap into the lugs and reinsert the pins. If unsure, consult an authorised dealer.

Yes, the 51.SL.MS is fully compatible with aftermarket straps of 20mm width, provided they are manufactured by qualified artisans. It is essential to verify that the strap is genuinely 20mm before purchase. Milano Straps offers a specialised collection of leather, NATO, and rubber straps, all tested for compatibility with this lug width.

A quality leather strap, such as alligator or shell cordovan, has an average lifespan of 3-5 years with daily use, provided proper maintenance is observed. Longevity depends on: sun exposure, humidity, frequency of wear, and periodic care. Shell cordovan tends to last longer than alligator due to superior fibre density. Milano Straps proposes artisanal straps with treatments that slow the natural ageing of the leather.