Technical Archive

Laco
Navy Watches 861651.2— lug 20mm

Laco Navy Watches 861651.2: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Navy Watch Valencia  / Stainless Steel / White

Artisanal Note

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

Technical Specifications

Laco 861651.2
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

861651.2

Movement

Miyota caliber 821A Hours, Minutes, Seconds | Date

The Heritage

The Laco 861651.2 Navy Watch Valencia is a contemporary evolution of German Navy Watch tradition, featuring a 42 mm stainless steel 316L case with a Miyota caliber 821A movement. The watch displays hours, minutes, seconds and date with high-contrast indices and Arabic numerals following cockpit ergonomics standards. The 20 mm lug width is specific to this model and requires careful measurement for strap compatibility.

FAQ

What is the exact lug width of the Laco 861651.2?

The Laco 861651.2 features a lug width of 20 millimetres. This dimension is specific to this model and does not represent a universal standard. To verify compatibility with an aftermarket strap, measure the internal distance between the lugs using a digital calliper, positioning the measuring tip perpendicular to the inner edge of each lug.

Which strap is recommended for the Laco Navy Watches 861651.2?

Strap selection depends on intended use. For formal or professional contexts, we recommend alligator leather with vegetable tanning or calf nappato in neutral tones (black, brown, cognac). For sporadic or daily use, robust NATO-style textile straps offer versatility and durability. Vulcanised butyl rubber is ideal for humid environments or recreational activities, providing water resistance and rapid drying.

How do you change the strap on a Laco 861651.2 watch?

Strap replacement is performed using a spring bar tool: insert the bifurcated tip beneath the tension spring of the lug, applying gentle pressure towards the case interior until the first end of the spring is released. Repeat the operation on the second side, remove the used strap and insert the new one, ensuring that the tension spring locks correctly within both lugs.

Which aftermarket straps are compatible with the Laco 861651.2?

The Laco 861651.2 accepts all straps designed for a 20-millimetre lug width. Always verify the specific dimensions with the manufacturer before purchase. Milano Straps offers a dedicated selection of 20mm straps in leather, NATO and rubber, all tested for compatibility with this model and ready for dispatch.

How long does a leather strap last on a wristwatch like the Laco 861651.2?

The durability of a leather strap depends on material quality, tanning process and intensity of use. An alligator leather strap with vegetable tanning, subjected to moderate daily use, guarantees a lifespan of 3–5 years before replacement is required. Calf nappato leather, with regular maintenance (semi-annual conditioning), reaches 2–3 years. Prolonged exposure to sunlight, water and perspiration accelerates ageing.