Longines · Equestrian

Strap for Equestrian Horseshoe 34 Arabic

Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width16 mm
Case diameter34 mm
ReferenceL6.138.4.73.2 (aka: L61384732)
FamilyEquestrian
MovementLongines caliber L157 Hours, Seconds, Minutes | Date
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 Equestrian L6.138.4.73.2 (aka: L61384732)

Selected for the 16 mm lug width

All 16 mm straps →

The Equestrian L6.138.4.73.2 (aka: L61384732), seen from the bench

The Longines Equestrian L6.138.4.73.2 is a 34 mm stainless steel dress sports watch powered by the automatic L157 caliber. It features a clean dial with hours, minutes, seconds and date window, combined with a 16 mm lug width that ensures versatile strap compatibility. The 316L steel case and proportioned case geometry make this model suitable for both leather and textile straps without compromise.

Frequently asked questions

What is the exact lug width of the Longines Equestrian L6.138.4.73.2?

The lug width (strap width) of the Longines Equestrian L6.138.4.73.2 is 16mm. This measurement is taken from the inner shoulder of one lug to the other, and it is the fundamental parameter for ensuring compatibility with aftermarket straps. You can verify it easily with a digital calliper or a flexible ruler positioned transversely between the two lateral pins of the case.

What is the best strap for the Longines Equestrian L6.138.4.73.2?

Given the proportions and sportive-classical character of the L6.138.4.73.2, Mississippi alligator is the premium choice. The natural grain of the leather echoes the equestrian heritage, whilst mechanical durability and patina development over time confer a sophisticated appearance to the timepiece. Alternatively, vegetable-tanned calf or cordovan offer elegance with a more understated tone.

How do I correctly change the strap on my Longines Equestrian?

Changing the strap on the Longines Equestrian L6.138.4.73.2 requires a spring bar tool or, alternatively, a small flat lever (such as a flathead screwdriver tip). Insert the tool gently into the thin channel between the lug and the internal lever of the pin, press downward to release the spring, and extract the bar. Repeat from the opposite end of the strap. Install the new strap with bars already positioned in the holes, ensuring they click into the lateral seats with a firm click.

Can I fit a non-Longines strap on my Longines Equestrian?

Yes, any strap with a 16mm lug width is compatible with the L6.138.4.73.2. Non-original Longines aftermarket straps often offer superior quality in terms of leather and artisanal craftsmanship. Always verify the lug width before purchase and ensure the strap features standard-diameter spring bars.

How long does a leather strap last on my Longines watch?

The lifespan of a leather strap depends on the material and usage patterns. A quality alligator strap lasts 4–6 years of daily wear. Calf and cordovan typically last 3–4 years before requiring servicing (deployant replacement or re-stitching). Factors such as humidity, sunlight exposure, and frequency of wear influence longevity. Regular maintenance (gentle cleaning and protective treatment) significantly extends the strap's life.

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