Technical Archive

Laco
Pilot Watches 861690.2— lug 20mm

Laco Pilot Watches 861690.2: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Pilot Watch Basic Aachen Stainless Steel / Black

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Laco 861690.2
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

861690.2

Movement

Miyota caliber 821A Hours, Minutes, Seconds | Date

The Heritage

The Laco Pilot Watch model 861690.2 combines German aeronautical heritage with functional design rooted in Bauhaus principles since 1925. The 42mm stainless steel case features a legible dial with Mercedes hands and threaded crown, designed for practical aviation use. Powered by a Miyota 821A quartz movement, it displays hours, minutes, seconds, and date. The 20mm lug width accepts a 20mm strap for secure fit without play.

FAQ

What is the lug width of the Laco Pilot Watches 861690.2?

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.

Which strap do you recommend for the Laco Pilot Watches 861690.2?

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.

How do I change the strap on my Laco Pilot Watches 861690.2?

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.

Can I use a quality aftermarket strap on this model?

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.

How long does a quality leather strap last on a watch like this?

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.