Longines · Flagship

Strap for Flagship 26 Automatic Two Tone White

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
ReferenceL4.274.3.22.7 (aka: L42743227)
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

The Flagship L4.274.3.22.7 (aka: L42743227), seen from the bench

The Longines Flagship is powered by the L595 calibre with hour, minute, second and date indication. The case features 13mm lugs and uses the L4.274.3.22.7 reference. The movement offers the essential time and calendar functions in a classic configuration of the Swiss brand.

Frequently asked questions

What is the exact lug width of the Longines Flagship L4.274.3.22.7?

The lug width of the Longines Flagship L4.274.3.22.7 is 13mm. This dimension is specific to the ladies' and midsize version of the model and determines the width of the compatible strap. To verify it, measure with a calliper the internal distance between the two lugs of the case.

Which type of strap do you recommend for the Longines Flagship L4.274.3.22.7?

The ideal strap depends on intended usage: for formal contexts, Mississippi alligator or shell cordovan offer timeless elegance. For daily wear, vegetable-tanned calf or cotton NATO ensure comfort and practicality. Colour selection should reflect the dial tone: dark brown for light dials, black or hazel for blue dials.

How do I change the strap on a Longines Flagship?

The strap is replaced using a specific tool (spring bar tool) to compress the internal springs of the lugs and slide them horizontally. Position the watch on a stable surface, insert the tool into the lug slot, compress slightly, and slide out the old strap. Insert the new strap in the same manner, ensuring both sides of the spring are perfectly seated.

Can I use an aftermarket strap on a Longines Flagship L4.274.3.22.7?

Yes, any strap with a 13mm lug width is compatible with the L4.274.3.22.7. Bespoke artisanal straps offer superior fit and the possibility of customizing leather type, colour, thread, and thickness, adapting the strap to the exact proportions of the case.

How long does a leather strap last on a 13mm Flagship?

Durability depends on frequency of use, leather quality, and environmental conditions. An alligator or shell cordovan strap, properly maintained, lasts 5-7 years with regular wear. Vegetable-tanned calf ensures 3-5 years. Constant exposure to humidity, direct heat, and perspiration reduces longevity. Periodic maintenance (gentle cleaning, drying, conditioning with natural oils) significantly extends strap lifespan.

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