Longines · Heritage

Strap for Heritage Military 1918

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter44 mm
ReferenceL2.811.4.53.0
FamilyHeritage
MovementLongines caliber L615.2 hours, minutes, small seconds | date
Year2016
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 Heritage L2.811.4.53.0

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Heritage L2.811.4.53.0, seen from the bench

The Longines Heritage L2.811.4.53.0 is a modern reinterpretation of the Heritage collection, embodying 1940s aesthetics when Longines served as official timekeeper for polar expeditions and ocean crossings. Housed in a 44mm stainless steel tonneau case with curved lugs and protected crown, it features the automatic L615.2 caliber with 64-hour power reserve, displaying hours, minutes, small seconds, and date. The case is satin-finished with polished chamfers, offers 100m water resistance, and comes with a domed sapphire crystal protecting a silvered dial. Lug width: 22mm.

Frequently asked questions

What is the lug width of the Longines Heritage L2.811.4.53.0?

The lug width of the Longines Heritage L2.811.4.53.0 is 22mm. This dimension represents the inner spacing between the lugs of the case and is the critical parameter for selecting a compatible strap. You can verify it with a digital calliper positioned perpendicularly across the lugs.

What is the best strap for the Longines Heritage L2.811.4.53.0?

For the Longines Heritage L2.811.4.53.0, we recommend an alligator strap in dark brown (testa di moro) or cognac, which dialogues perfectly with the heritage aesthetic of the 44mm case. Alternatively, vegetable-tanned calf leather ensures breathability and develops a compelling patina over time. For sporting contexts, a 2-piece NATO strap in fabric maintains instrumental authenticity.

How do I change the strap on the Longines Heritage L2.811.4.53.0?

To change the strap, use a spring bar removal tool to extract the elastic pins (spring bars) that connect the strap to the lugs. Position the flat end of the tool beneath the spring bar, apply gentle upward pressure, and the pin will release. Repeat on the opposite side, then install the new strap by aligning it with the lug holes and pushing the spring bars until they click into place.

Which aftermarket strap is compatible with the Longines Heritage L2.811.4.53.0?

Any artisanal strap with a 22mm lug width is compatible with the Longines Heritage L2.811.4.53.0, provided it features suitable passants or is customisable. Straps in artisanal Florentine leather with vegetable tanning, alligator, hand-finished calf, and 2-piece NATO fabric represent the most coherent choices with the watch's aesthetic code.

What is the average lifespan of a leather strap for the Longines Heritage L2.811.4.53.0?

A quality leather strap with vegetable tanning and artisanal stitching typically lasts 3–5 years under moderate use. Longevity depends on humidity exposure, frequency of wear, and maintenance: regular conditioning with protective balms significantly extends the strap's lifespan. Hand-finished calf and alligator leather, when properly treated, can exceed 7 years of service.

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