Milano Straps
← Laco

ITENDEFRES

SearchCart
Menu

Laco · Classics

Strap for Classics Wittenberg / Stainless Steel / White

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

Lug width

20mm
20 mm strapsAll Laco
Lug width20 mm
Case diameter40 mm
Reference861862
FamilyClassics
MovementETA caliber 2892 Flyback hours, minutes, seconds | date | Chronograph, Flyback
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

View →

Straps for the Classics 861862

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Classics 861862, seen from the bench

The Laco Classics 861862 is a 40mm stainless steel chronograph flyback with a clean, functional design rooted in 1925 Pforzheim watchmaking tradition and Luftwaffe pilot instruments. It houses the ETA 2892 Flyback movement featuring a manual chronograph, date indicator, 28,800 vph frequency, and Glucydur hairspring. The watch features a sapphire crystal with anti-reflective treatment, transparent caseback, and 10 bar water resistance. The 20mm lug width is proportioned to the case's integrated shoulders for visual balance and requires precise aftermarket strap fitment.

Frequently asked questions

What is the lug width of the Laco Classics 861862?

The Laco Classics 861862 features a lug width of 20mm. This dimension is proportioned to the integrated lugs of the 40mm case and is measured from the centre of one lug to the centre of the other. Do not confuse this with the case diameter itself.

What is the best strap for the Laco Classics 861862?

The choice depends on your use case. For formal elegance: brown or black alligator. For refined daily wear: vegetable-tanned leather. For tactical practicality: NATO Ballistic fabric. For summer and water exposure: grey or black FKM rubber. All materials are available in 20mm at Milano Straps.

How do I change the strap on my Laco Classics 861862?

The Laco 861862 features integrated lugs. Remove the worn strap by extracting the horizontal spring bars using a dedicated spring bar tool. Insert the pins of the new strap into the same position until they click shut. Verify that the strap sits symmetrically. If your new strap includes a deployant, ensure its width is compatible with the 20mm lug width.

Can I use an aftermarket strap that is compatible with the Laco Classics 861862?

Yes, aftermarket straps in the 20mm lug width are fully compatible. Milano Straps offers leather straps (alligator, calf, shell cordovan), NATO fabric, and rubber, all fabricated to the correct specification. Always verify that the width is precisely 20mm to avoid any play.

What is the average lifespan of a leather strap for the Laco Classics 861862?

A quality leather strap (alligator, vegetable-tanned calf, shell cordovan) used daily typically lasts 3–5 years before showing significant wear. Longevity depends on usage intensity, ambient humidity, and maintenance. Periodically applying natural balms (beeswax, castor oil) slows ageing. NATO and rubber straps require less maintenance but have a shorter practical lifespan.

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.

Request an appointment →

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