Laco
Vintage 861842— lug 18mm

The lug width (ansa measure) of the Laco Vintage 861842 is 18mm. This dimension represents the distance between the two lugs on the case and determines strap compatibility. To verify the measurement, insert a ruler between the lugs and measure centre-to-centre.

For the Laco Vintage 861842, we recommend a vegetable-tanned leather strap (dark brown, umber) to enhance the vintage-military aesthetic, or natural alligator for a more formal interpretation. Valid alternatives include cotton NATO for humid environments and rubber for sports activities. All available in 18mm lug width.

To change the strap: 1) place the watch on a flat surface; 2) locate the spring bar (pin) that passes through the lugs; 3) use an appropriate tool (strap removal bar or thin screwdriver) to push the pin from one side; 4) remove the old strap; 5) insert the new strap by aligning the lug holes with the case openings; 6) reinsert the spring bar until fully seated on both sides.

Yes, absolutely. The Laco Vintage 861842 is compatible with any strap featuring an 18mm lug width, regardless of brand. Always verify that the strap has lugs suitable to receive the case's spring bars. Established brands (Hirsch, Barton, Casati Milano) guarantee construction quality and comfort.

A quality leather strap (vegetable-tanned or alligator) typically lasts 3–5 years with daily wear, depending on exposure frequency to moisture, perspiration, and UV rays. Natural leather ages visibly, developing patina and micro-creasing. Longevity increases if the strap is removed during water activities or during sleep. With regular maintenance (cleaning, waterproofing treatment), lifespan can extend.