Strap for Kleine Lange 1 20th Anniversary Platinum / Black

The lug width of the A. Lange & Söhne Lange 1 reference 811.062 is exactly 19 millimetres. This measurement is taken from the inner point of one lug to the other, representing the available space for the watch strap. It is essential to verify this dimension with a calliper before purchasing an aftermarket strap, as even a 0.5 millimetre deviation can compromise fit and aesthetic harmony.

For the 811.062 in platinum, the ideal strap is alligator leather with vegetable tanning in dark brown or mahogany tones. This choice maintains the balance between German minimalism and material sophistication: the natural grain of alligator creates an elegant contrast with the platinum without competing visually. An excellent alternative is shell cordovan in charcoal grey or black, which patinas in parallel with the solid platinum case.

The strap is changed by removing the spring bars that connect the strap to the case lugs. Using a dedicated tool, compress the internal spring of the bar and extract it, freeing the old strap. Insert the new strap by aligning the holes with the lugs and reinsert the spring bar until it clicks securely. If you are inexperienced, we recommend having the operation performed by a qualified watchmaker to avoid damage to the case or lugs.

Yes, any strap with a 19 millimetre lug width is compatible with the 811.062. Milano Straps offers a complete collection of artisanal 19mm straps made from alligator, shell cordovan, vegetable-tanned calf leather and other premium materials. We recommend consulting Casati Milano for complete customisation, or selecting from ready-made models available online.

The longevity of a leather strap depends on the material and usage pattern. High-quality vegetable-tanned alligator typically lasts 4–6 years with daily wear; shell cordovan, being more durable, can reach 7–10 years. Calf leather is more delicate, with a typical lifespan of 3–4 years. These durations extend significantly if the watch is not worn daily. All Casati Milano straps are covered by an 18-month warranty against manufacturing defects and can be repaired or restored by our Milan workshop.