Strap for Legacy Machine N°1 LM1 Red Gold

The lug width of the MB&F Legacy Machine No.1 is precisely 20mm. This measurement is determined by the geometry of the 44mm case and represents the space between the attachment pins. To verify compatibility, measure the distance between the two metal lugs that insert into the case: it must correspond to 20mm. Inaccurate measurement carries risks of incompatibility and potential pin damage.

Alligator leather in cognac brown represents the optimal aesthetic pairing: the natural, fine grain creates visual harmony with the satined case while the warm tone amplifies the red gold hue. Alternatively, vegetable-tanned calf leather develops patina over time, synchronizing with the natural ageing of red gold. For bolder combinations, black alligator generates contemporary contrast whilst emphasizing the movement's transparency through the crystal.

Changing the strap on this red gold case requires caution. Using a dedicated spring bar tool, insert the thin blade into the lateral access hole (located on the case base between the lugs), then gently press to compress the internal pin spring. Simultaneously, pull the pin toward the strap edge. Repeat on both sides. When reinserting the new strap, ensure pins are fully inserted and click into the locking position. Avoid excessive force on the precious metal case.

Yes, any strap with a 20mm lug width is mechanically compatible. However, to preserve the integrity of the red gold case and the aesthetic coherence of the Legacy Machine, we recommend artisanal straps in precious leather (alligator, calf, shell cordovan) or high-quality technical fabrics (NATO in Cordura). Avoid budget-priced synthetic leather straps, which conflict with the construction quality of the movement and case.

A high-quality artisanal alligator or calf strap, worn daily, maintains full functionality for 3-4 years whilst acquiring natural patina and developing distinctive character. Longevity depends on usage intensity, environmental humidity, and maintenance. Regularly applying protective balms specifically formulated for leather—every 6-8 months—significantly extends strap lifespan. Shell cordovan, owing to superior fibre density, can achieve 5-6 years of service. NATO textile straps, conversely, maintain functionality for 4-5 years under normal conditions.