Strap for Horological Machine N°1 HM1 RS Red Gold

The MB&F Horological Machines 10.T41RL.O is fitted with a 20mm lug width. This measurement is specifically proportioned to the 59mm case diameter and ensures stable connection between the massive watch body and the wrist. To verify: measure with a digital calliper the perpendicular distance between the two internal metal lugs of the attachment; it must be exactly 20mm. This precision is critical for ensuring correct strap retention.

For the 10.T41RL.O in red gold, alligator represents the most aristocratic solution: the natural scaled grain creates sophisticated contrast with the red gold whilst guaranteeing structural durability on the 20mm lug. Alternatively, vegetable-tanned calf offers elegant-casual aesthetics and develops a patina that evolves harmoniously with the red gold's ageing. For a more modern and sporty aesthetic, NATO straps in high-density technical canvas maintain appropriate visual proportions to the massive case.

Changing the strap on the 10.T41RL.O requires: 1) position the watch on a soft surface to prevent scratching the red gold; 2) use a spring bar removal tool to gently compress the internal springs of the attachment; 3) carefully extract the old strap from its seat; 4) insert the new strap, aligning it precisely with the metal lugs and ensuring the springs lock properly. It is advisable to have this operation performed at an authorised MB&F service centre or by an experienced watchmaker.

Yes, the 10.T41RL.O is fully compatible with quality aftermarket artisanal straps, provided they respect the 20mm lug width. Milano Straps offers straps in alligator, calf, NATO and FKM rubber specifically crafted for this measurement. Ensure the strap is supplied with the correct lug attachment and that the deployante—if present—is in a noble material compatible with red gold (red gold matching, stainless steel or silver).

A quality artisanal leather strap (alligator or calf) has an average lifespan of 3–5 years with regular daily use, depending on exposure to moisture, perspiration and UV rays. Alligator tends to last longer thanks to its natural scaled structure. Vegetable-tanned calf develops patina over time but requires periodic maintenance (specific cleansers, conditioning). NATO straps in technical canvas have virtually unlimited durability. To maximise longevity, rotate your daily strap, protect from extreme exposures and have preventive maintenance performed by specialised craftsmen.