Longines · Flagship

Strap for Flagship 26 Automatic Stainless Steel White

Integrated attachment: measurements, the most common questions, and the way to a made-to-measure strap.

Lug width to be confirmed

On this Longines Flagship L4.274.4.12.6 the lug width doesn't convince me, and I don't want to give you a number I'm not sure about. Write to me on WhatsApp with the reference or a photo of the watch: I'll check it and tell you myself.

Case diameter26 mm
ReferenceL4.274.4.12.6 (aka: L42744126)
FamilyFlagship
MovementLongines caliber L595 Hours, Minutes, Seconds | Date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Frequently asked questions

What is the best strap material for the Longines Flagship L4.274.4.12.6?

The best material depends on your intended use. For formal elegance, Nile crocodile with fine grain or shell cordovan offers exceptional patina and durability. For daily wear and comfort, vegetable-tanned calf leather provides softness and natural ageing. For humid or sporty environments, a robust nylon NATO or FKM rubber strap ensures grip and practicality. Your choice reflects your lifestyle.

How do you change the strap on the Longines Flagship L4.274.4.12.6?

Remove the strap using a spring bar tool. Position the flat tip of the tool under the lateral spring bar, push inward to release the spring, and gently withdraw the bar. Repeat on the other side. Insert the new strap by aligning the holes with the spring bars, then reinsert both bars until they click into place. If you lack a dedicated tool, Casati Milano offers professional strap changes with custom measurements.

How long does a leather strap last on a Longines Flagship L4.274.4.12.6?

The longevity of a natural leather strap depends on material and usage. Shell cordovan, being extremely dense, lasts 5–7 years with daily wear and regular maintenance. Vegetable-tanned calf typically lasts 3–5 years. Alligator, thanks to its fibrous structure, achieves 4–6 years. Critical factors: humidity, frequency of wear, direct sun exposure and periodic cleaning. Casati Milano provides 18-month warranty on all bespoke straps, with regeneration options available.

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

The atelier's website: casatimilano.com