Strap for Pilot Watch Basic Aachen Stainless Steel / Black

The Laco 861690.2 features a lug width of 20mm. This measurement represents the internal distance between the two spring bar attachment points on the case. Any compatible strap must match this 20mm width to fit perfectly without lateral play or excessive tension.

We recommend a vegetable-tanned alligator strap for refined construction, or a dark taurine calf leather for daily versatility. For authentic sporting or aeronautical contexts, a canvas NATO or a rubber strap represent orthodox choices. All straps must feature the 20mm lug width.

Strap replacement requires a dedicated spring bar tool to compress the spring-loaded pins on the lugs. Position the watch face-down, insert the tool into the lateral hole of the pin, compress gently and remove the old strap. Insert the new strap (20mm), aligning the holes carefully, release pressure and verify secure attachment. If unsure, consult a qualified watchmaker.

Absolutely. The 861690.2, with its standard spring bar attachments, accepts any quality strap with a 20mm lug width. We recommend noble materials (alligator, calf, shell cordovan) or technical solutions (NATO, rubber) that respect the aeronautical heritage of this timepiece.

A quality artisanal alligator or vegetable-tanned calf strap typically lasts 3-5 years with daily use, sometimes longer with proper maintenance (periodic cleaning, protection from standing water, rotation among multiple straps). Longevity depends on use intensity, climate and personal care. NATO or rubber straps typically last 5-10 years.