MB&F
Horological Machines 55.CMT.B— lug 20mm
MB&F Horological Machines 55.CMT.B: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
MB&F 55.CMT.BThe essential strap measurement.
Browse 20mm straps →55.CMT.B
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Selected for the 20mm lug width of the Horological Machines
FAQ
What is the lug width of the MB&F Horological Machines 55.CMT.B?
The MB&F Horological Machines 55.CMT.B features a lug width of 20mm. This measurement is critical when selecting a replacement strap: the distance between the case lugs is exactly 20 millimetres. Ensure your chosen strap is specifically designed for this measurement, avoiding 18mm or 22mm options which will not fit correctly.
Which type of strap is best suited for the MB&F Horological Machines 55.CMT.B?
For the HM55, an alligator strap in black or brown is the most elegant choice, maintaining visual focus on the watch's high-complication mechanics. Alligator leather does not compete with the case's presence. Alternatively, vegetable-tanned calf leather or a robust nylon NATO strap offer versatility, whilst vulcanised rubber provides practicality and water resistance.
How do I change the strap on an MB&F Horological Machines 55.CMT.B?
Strap change is accomplished via the spring bars connecting the strap to the case lugs. Position the watch on a protective cradle, use a spring bar tool to compress the bars and slide the strap free from the lugs. Insert the new strap, aligning the holes with the spring bars, and release the bars once positioned. Verify secure attachment before wearing.
Is an aftermarket strap compatible with the MB&F Horological Machines 55.CMT.B?
Yes, any quality artisanal strap with a 20mm lug width is fully compatible with the HM55. Aftermarket straps allow personalisation according to your aesthetic preferences without compromising functionality. Always verify the strap is genuinely 20mm and that spring bars are correctly sized for the case.
What is the average lifespan of a leather strap for the MB&F Horological Machines 55.CMT.B?
A quality artisanal alligator or calf leather strap offers a lifespan of 4-7 years with proper maintenance, varying by usage frequency and climate conditions. Vegetable-tanned leather tends to patina rather than degrade, improving over time. Rubber and NATO straps have superior durability (8-10 years) due to synthetic materials. Regular maintenance with appropriate products significantly extends strap lifespan.