Longines · Equestrian

Strap for Longines Equestrian L6.135.0.57.0

The Equestrian Horseshoe 23 Diamond / Black takes 10 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

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Lug width10 mm
Case diameter23 mm
ReferenceL6.135.0.57.0 (aka: L61350570)
FamilyEquestrian
MovementLongines caliber L963 Hours, Minutes | Date
Year2016 - 2020
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

What I'm asked about the Longines Equestrian L6.135.0.57.0

What strap size does the Longines Equestrian L6.135.0.57.0 take?

The Longines Equestrian L6.135.0.57.0 needs 10 mm between the lugs. It's the size I've been fitting on it for years.

Can the strap on the Longines Equestrian L6.135.0.57.0 be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Longines Equestrian L6.135.0.57.0?

Yes, in 10 mm leather. On a 23 mm case a calf strap works every day; if you want something more, alligator.

Which strap do you recommend for the Longines Equestrian L6.135.0.57.0?

A 10 mm calf strap, for every day. I don't keep this size ready in the catalogue: I make it to measure. If you'd rather have something built on your wrist, the Casati atelier.

The Equestrian L6.135.0.57.0, seen from the bench

The Longines Equestrian reference L6.135.0.57.0 features the L963 caliber with hour, minute and date indications. The case features 10mm lugs and Longines' manufacture movement. The model is part of the Swiss brand's equestrian-themed collection.

Frequently asked questions

Can I use an aftermarket strap for the Longines Equestrian L6.135.0.57.0?

Yes, you can use a quality aftermarket strap for the Longines Equestrian L6.135.0.57.0, provided the lug width is exactly 10 millimetres. Aftermarket straps offer great stylistic customisation and often feature high-quality materials (alligator, calf, shell cordovan) at more accessible prices than original Longines straps. Milano Straps provides artisanal straps specialised in this size, fully customisable in leather, colour, stitching and initials. We always recommend verifying the lug width with a calliper before ordering to avoid incompatibility.

What is the average lifespan of a leather strap for the Longines Equestrian L6.135.0.57.0?

The lifespan of a leather strap for the Longines Equestrian L6.135.0.57.0 varies based on material, use and maintenance. An alligator or quality calf strap, worn daily, has an average lifespan of 4-6 years before requiring replacement. Alligator with vegetable tanning tends to last longer, developing a fascinating patina over time. Factors such as moisture exposure, perspiration, UV rays and frequency of use influence longevity. To extend the lifespan, avoid prolonged water immersion, store the watch in a dry, air-conditioned environment, and occasionally apply a protective balm specifically designed for fine leathers. Milano Straps artisanal straps come with an 18-month guarantee and can be serviced at the Casati Milano atelier.

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

The atelier's website: casatimilano.com