Strap for Pilot Watch Basic Zürich Stainless Steel / Black

The Laco Pilot Watches 861806 features a lug width of 20 millimetres. This measurement represents the internal distance between the two case lugs and determines compatibility with any aftermarket strap. To verify, measure the internal space between the lugs with callipers: it should register exactly 20mm.

Given the technical character of the Pilot 861806, we recommend vegetable-tanned leather (calf or alligator) for structural elegance, or NATO textile for historical aeronautical coherence. Alligator offers regular texture free of subcutaneous veining, whilst calf develops patina as it ages. NATO straps in khaki or grey-green echo historical parachute patterns.

Strap replacement occurs via the spring bars that connect the lugs to the case. Use a spring bar removal tool to gently compress the internal spring of each bar, facilitating horizontal extraction. Insert the new strap by aligning its lateral slots with the bars, then reinstall the bars in their original position. Professional servicing is unnecessary if you possess the correct tool.

Yes, any strap with a 20mm lug width is compatible with the Laco Pilot 861806, regardless of manufacturer. The market offers straps in leather (calf, alligator, cordovan), textile (NATO), vulcanised rubber and even steel. milanostraps.it curates a selection of 20mm straps in artisanal materials and premium finishes.

Durability depends on material and usage patterns. A quality vegetable-tanned leather strap, worn regularly, maintains full functionality for 3–5 years before replacement becomes necessary. Alligator and shell cordovan offer superior longevity due to fibrous density. Visible aging is desirable: the patina that develops signals authentic use and accumulated character.