Montblanc
Heritage 118471— lug 20mm
Montblanc Heritage 118471: 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
Montblanc 118471The essential strap measurement.
Browse 20mm straps →118471
Montblanc caliber MB 29.24 Hours, Minutes | Tourbillon Escapement
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Heritage
FAQ
What is the lug width of the Montblanc Heritage 118471?
The Montblanc Heritage Spirit Orbis Terrarum 118471 features a lug width of 20 millimetres. This technical specification is essential when selecting compatible aftermarket straps. The width-to-case diameter ratio of 1:5 ensures classical aesthetic balance.
Which strap do you recommend for the 118471?
We recommend straps in genuine alligator leather in cognac or deep brown tones, which emphasise the elegance of white gold and the formal character of the Heritage collection. Alternatively, vegetable-tanned calf leather or silk-twisted NATO straps offer daily versatility. Every choice should maintain coherence with the 18-carat white gold deployante.
How do I change the strap on the 118471?
The 118471 uses standard spring bars. Obtain a strap removal tool (small bar extractor), gently slide the bars from the lugs without forcing, replace the used strap with a new 20mm option, and reinsert the bars. If unfamiliar with the procedure, Casati Milano provides strap changes by appointment at the atelier.
Are aftermarket straps 100% compatible with the 118471?
Yes, any strap with a 20mm lug width is structurally compatible. However, we recommend selecting thicknesses between 3.5 and 4.2 millimetres to maintain ideal proportions. Milano Straps products are crafted to these specifications for maximum aesthetic comfort.
How long does a leather strap last on a watch like the 118471?
A high-quality leather strap with vegetable tanning typically lasts 3–5 years under daily use with routine care. Alligator leather, being denser, may last 7–8 years. Longevity increases significantly if rotated with other straps. Humidity and direct sunlight exposure accelerate ageing.