Strap for 1858 Manual Small Second Stainless Steel / Black / Mesh

The Montblanc 1858 Collection 112639 features a lug width of 22 millimetres. This dimension is model-specific and corresponds to the distance between the lugs (spring bars) where the strap is affixed. Always select straps with a 22mm lug width to ensure correct fitment and secure seating.

Selection depends on intended use. For formal or elegant contexts, we recommend authentic alligator or premium calf leather in brown or black tones. For daily wear, vegetable-tanned Tuscan leather in tobacco brown offers excellent durability and evolving patina. For aquatic sport or demanding environments, FKM rubber or NATO fabric straps are ideal solutions.

To change the strap, use a spring bar tool available from watchmakers or online retailers. Position the tool beneath the lug, apply gentle pressure to compress the internal spring, and slide the bar from its housing. Repeat on the opposite side. Subsequently, align the new strap and reinsert the bars. If you own a deployante buckle, the change is faster—simply unfasten the previous strap.

Yes, artisanal aftermarket straps with 22mm lug width are fully compatible with the 112639. Specialised brands such as Milano Straps offer straps in leather, alligator, and technical materials, all tested to guarantee perfect fit and stability. Using aftermarket straps does not compromise any official warranty and permits aesthetic and functional customisation of your timepiece.

Longevity depends on material and wear patterns. Quality vegetable-tanned leather (Tuscan, Hermès taurillon) lasts approximately 3–5 years with moderate daily use, accumulating noble patina. Alligator, due to stronger structure, reaches 5–7 years. Vulcanised rubber persists 4–6 years before elasticity diminishes. To extend strap life, keep leather dry, avoid prolonged UV exposure, and occasionally apply natural oils (neatsfoot oil) to nourish the fibres.