Laco · Chronographs

Strap for Chronographs Las Vegas / Stainless Steel / Black

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter44 mm
Reference861587
FamilyChronographs
MovementETA caliber 7750 hours, minutes, small seconds | date, day | Chronograph
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 Chronographs 861587

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Chronographs 861587, seen from the bench

The Laco Chronographs 861587 is a 44mm stainless steel chronograph rooted in German Fliegeruhren heritage. It features an ETA Valjoux 7750 movement offering 42 hours of autonomy, with three subdials for small seconds, chronograph, and date/day. The 22mm lug width ensures proper proportions for this case diameter, with milled steel lugs enabling quick strap replacement. The anti-reflective sapphire crystal and visible caseback showcase the movement's reliability and construction standards without ornamental excess.

Frequently asked questions

What is the lug width of the Laco Chronographs 861587?

The lug width of the Laco Chronographs 861587 is 22mm. This measurement is taken between the two spring bar pins that connect the strap to the case and represents the exact space into which a compatible strap must fit. On a 44mm case diameter, 22mm lugs provide proportional balance and ergonomic comfort on the wrist.

Which strap should I choose for the Laco Chronographs 861587?

Your choice depends on intended use and aesthetic preference. For classic elegance, we recommend vegetable-tanned Tuscan leather in Havana brown or American alligator in dark blue: both age beautifully and complement the brushed steel patina. For sports or aquatic use, nylon NATO or FKM rubber deliver mechanical reliability without compromise. On a chronograph, the strap must support dynamic wrist motion without elastic yielding.

How do I change the strap on my Laco 861587?

Obtain a spring bar tool (a specialised small lever) or consult a watchmaker. Position the tool inside the case lug, locate the small lateral hole on the chrome pin, and gently push inward: the pin will retract. Extract the old strap and insert the new one, ensuring the pin snaps back into position. Verify that the strap is firmly secured on both sides before wearing the watch.

Can I use aftermarket-compatible straps on this model?

Yes, provided the lug width is exactly 22mm and the strap is constructed from quality materials. Verify that the pins or attachment points are correctly dimensioned. A well-made aftermarket strap (with deployante buckle, double stitching, aged material) can significantly enhance user experience and allow aesthetic personalisation consistent with the chronograph's design profile.

How long does a leather strap last on a chronograph like the 861587?

A quality vegetable-tanned leather strap, under moderate use (4–5 days weekly), maintains structure and comfort for 2–3 years. Natural ageing is integral to the narrative: patina deepens, colour evolves. On a chronograph, where the wrist experiences frequent motion to operate the chronograph pusher, stress is higher than on a dress watch. Alligator and shell cordovan offer extended longevity (4–5 years) owing to superior material density.

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