Laco · Pilot Watches

Strap for Pilot Watch Basic Bielefeld Stainless Steel / Black

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter42 mm
Reference861760.2
FamilyPilot Watches
MovementETA caliber 6497-1 Hours, Minutes, Small Seconds
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Pilot Watches 861760.2

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Pilot Watches 861760.2, seen from the bench

The Laco Pilot Watch 861760.2 represents the contemporary evolution of a century-old German watchmaking tradition dedicated to instrumental aviation. Housing a 42 mm stainless steel case with white dial and black indices following Bauhaus principles, this model mounts the ETA 6497-1 manual-wind caliber operating at 18,000 oscillations per minute. The 20 mm lug width accommodates aftermarket straps and pairs with 200 metres water resistance for robust instrument-grade reliability.

Frequently asked questions

What is the lug width of the Laco Pilot Watches 861760.2?

The lug width of the Laco Pilot Watches 861760.2 is 20 millimetres. This constructive specification is essential for selecting compatible aftermarket straps. Measurement is performed by positioning a digital calliper between the spring bars that connect the case to the strap, at the precise point where the bars traverse the case.

Which strap material pairs best with the Laco Pilot 861760.2?

The Laco Pilot 861760.2 pairs magnificently with vegetable-tanned calf leather straps—these develop a compelling patina whilst maintaining constructive elasticity. For formal wear, vegetable-tanned alligator communicates elegance and structure. For aviation or intensive recreational use, a natural or synthetic rubber deployante ensures grip and practicality without aesthetic compromise. A fabric NATO strap references the watch's military origins.

How do you change the strap on the Laco Pilot Watches 861760.2?

The strap is changed by removing the spring bars that connect the lugs to the case. A dedicated spring bar tool is employed: insert from beneath the lug, lift the bar gently until the first strap end is released, then repeat from the opposite side. Once both ends are liberated, the old strap slides free. The new 20mm lug-width strap is installed by aligning the holes with the bars and applying gentle pressure until they lock.

Are aftermarket 20mm straps truly compatible with the Laco 861760.2?

Yes, entirely. Aftermarket 20mm lug-width straps sourced from specialist manufacturers fit the Laco 861760.2 perfectly. The critical requirement is that width measures precisely 20 millimetres: narrower (18mm) or wider (22mm) straps would generate lateral play or installation strain. Artisanal straps manufactured with constructive precision guarantee absolute compatibility.

How long do leather straps last on the Laco Pilot Watches 861760.2?

Leather strap longevity depends on material and tanning process. A vegetable-tanned calf strap typically lasts 3–5 years of moderate daily use, developing compelling patina throughout its useful life. A vegetable-tanned alligator strap may reach 5–7 years or beyond, thanks to the grain's superior resistance. A shell cordovan strap exceeds 7–10 years. These timescales extend significantly if the strap is shielded from extreme temperature fluctuations, regularly dried and protected from stagnant moisture.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only