Longines · Elegant

Strap for Elegant Collection 25.5 Automatic Stainless Steel / Diamond / MOP / Strap

Takes 13 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width13 mm
Case diameter26 mm
ReferenceL4.309.0.87.2 (aka: L43090872)
FamilyElegant
MovementLongines caliber L592.2 Hours, Minutes, Seconds | Date | Chronometer
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Elegant L4.309.0.87.2 (aka: L43090872), seen from the bench

The Longines Elegant is powered by the L592.2 caliber with hour, minute, second and date functions, certified as a chronometer. The case features 13mm lugs. The movement guarantees chronometric precision according to COSC standards.

Frequently asked questions

What is the lug width of the Longines Elegant L4.309.0.87.2?

The lug width is precisely 13.00mm. This specification belongs to the feminine models in the Elegant segment and represents the internal distance between the two metal lugs. It is a fixed dimension that excludes approximations and determines the compatibility of any aftermarket strap.

Which strap should I choose for this Longines?

The ideal strap depends on usage and aesthetic preference. For formal occasions, a vegetable-tanned alligator or a subtle calf leather maintain the minimalist design intent. For daily wear, a textile NATO or a robust rubber offer durability without compromising legibility. The choice must respect the absence of ornamental excess that defines the model.

How do I change the strap on this watch?

Strap replacement is accomplished via spring bars (elastic metal bars) that anchor the strap to the case lugs. These must be extracted gently using a proper tool, taking care not to scratch the steel. A spring bar tool or professional watchmaking instrument facilitates the operation. Professional assistance is recommended if you lack experience.

Is a 13mm aftermarket strap fully compatible with the L4.309.0.87.2?

Yes, any strap with 13mm lugs is mechanically compatible. However, physical compatibility does not guarantee aesthetic coherence: the choice of material, colour, and finish must dialogue with the polished steel case and the minimalist proportions of this feminine dress watch.

How long does a leather strap last on this watch?

Durability depends on material and usage patterns. Vegetable-tanned alligator typically resists 3-5 years if worn daily; thin calf tends to wear more rapidly (2-3 years), while textile NATO can last 5-10 years. Exposure to sun, perspiration, and impacts accelerates ageing. Conscious maintenance, such as rotating between multiple straps, significantly extends useful 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