Strap for 4810 Orbis Terrarum Great Britain

The lug width of the Montblanc 4810 Collection Ref. 117186 is 20 millimetres. This width is standard for 43-millimetre watches in this collection and is compatible with the entire range of aftermarket straps available in this size on Milano Straps.

For the Montblanc 4810 Collection 117186, we recommend an alligator or vegetable-tanned calf leather strap to maximise refinement and patina development over time. If you prefer a more versatile solution, a NATO canvas strap with leather backing allows fluid transitions between formal and casual contexts without aesthetic compromise.

Strap changing is performed by removing the two original lugs from the case using a dedicated tool (spring bar tool). Position the new strap by inserting the lugs into the corresponding slots until you feel the securing click. If you do not possess the tool, our Casati Milano experts can execute the change by appointment with complimentary styling consultation included.

Yes, any strap with a 20-millimetre lug width is completely compatible with the 117186 without requiring adaptations. Milano Straps' aftermarket straps are handcrafted in Italy and respect the original case geometry, guaranteeing perfect fit and absence of play.

A quality leather strap (alligator or vegetable-tanned calf) lasts an average of 4–6 years with daily wear, developing desirable patina over time. Longevity depends on wear frequency, ambient humidity, and maintenance. With proper care, leather ages beautifully rather than degrading, giving your 117186 an authentic visual history.