Strap for Horological Machine N°2.2 HM2.2 Black Box

The MB&F Horological Machines 22.BB features a lug width of 20 millimetres. This measurement is specific to the case geometry and ensures correct visual balance between the generous 59mm diameter and the watch's vertical proportions. To verify strap compatibility, always measure the distance between lugs using a digital calliper, positioned perpendicularly to the lug.

For the MB&F 22.BB, alligator straps are recommended for formal sophistication, vegetable-tanned calf leather for aesthetic evolution over time, or fabric NATO straps for versatility. Your choice depends on intention: alligator amplifies the soberness of titanium, calf leather introduces controlled warmth, and NATO maintains the watch's design radicality. Avoid bright colours that would contrast with the timepiece's gravitas.

To change the strap, obtain a spring bar tool and position it perpendicularly against the lug pin. Apply gentle outward pressure until the pin begins to slide. Complete the extraction manually, being careful not to scratch the titanium case. Insert the new strap by aligning the lateral holes and push the pin until you feel a locking click. Once monthly, verify the pin's security by applying light pressure to the lug.

Yes, any strap with a 20mm lug width is compatible with the MB&F 22.BB. Artisanal straps from Milano Straps, manufactured to international standards, guarantee the precise width and build quality required for a timepiece of this calibre. Always verify that lateral holes align and the strap is free from defects before fitting.

A premium leather strap (alligator or calf) worn daily typically lasts 3–4 years before requiring replacement. Longevity depends on wear frequency, tanning quality, and exposure to moisture and sunlight. Vegetable-tanned leather improves aesthetically with age, developing a natural patina. To extend strap life, avoid prolonged water contact and allow natural drying after moisture exposure.