Strap for Pilot Watch Original Aachen Blaue Stunde Stainless Steel / Blue

The Laco 862101 features a 20mm lug width. This measurement must be taken internally between the two lugs of the case, perpendicular to the dial. It is essential to verify this measurement with precision before purchasing an aftermarket strap, as even half a millimetre of difference will render the strap incompatible.

The choice depends on intended use. For formal or refined daily wear, we recommend alligator with vegetable tanning or English calf leather of generous thickness (1.4–1.6mm). For demanding or military use, a NATO canvas strap guarantees inherent security. For humid or aquatic environments, a vulcanised FKM rubber strap preserves both function and aesthetics. All these materials, in 20mm width, are comprehensively available in our catalogues.

Changing the strap requires minimal tools: a small flathead screwdriver or a spring bar removal tool. Position the tool underneath the spring bar connecting the strap to the case, pushing outward until the spring releases. The spring bar will disengage, freeing the old strap. Position the new strap with the spring bar pre-loaded, and press gently until it clicks into place. Repeat the procedure symmetrically on the other lug.

Any strap with a 20mm lug width is compatible, provided it is manufactured by established practitioners who respect standard construction tolerances. We recommend straps in alligator, shell cordovan, calf leather, chrome-tanned leather, military cotton (NATO), or FKM rubber. Avoid straps of inferior construction quality: the engineering excellence of the Laco case merits a strap equal to its technical severity.

This depends on the material, tanning process, and intensity of use. A calf leather strap with vegetable tanning, with minimal care (periodic cleaning, protection from liquids), will last 3–5 years. An alligator strap of robust construction may exceed 6–7 years. A military-grade cotton NATO strap will exceed 10 years of daily wear. Patina, in premium leather, is not a defect but a sign of natural ageing that enhances the watch's character.