Longines · Heritage

Strap for Lindbergh's Atlantic Voyage Watch Arabic

Takes 25 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width25 mm
Case diameter48 mm
ReferenceL2.730.4.18.0 (aka: L27304180)
FamilyHeritage
MovementLongines caliber L705.2 Hours, Minutes, Small Seconds | Date | Chronograph
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Heritage L2.730.4.18.0 (aka: L27304180), seen from the bench

The Longines Heritage is equipped with the L705.2 caliber with functions of hours, minutes, small seconds, date and chronograph. The model features 25mm lugs and reference L2.730.4.18.0. The watch is part of the Heritage collection of the Swiss brand.

Frequently asked questions

What is the lug width of the Longines Heritage L2.730.4.18.0?

The lug width (misura ansa) of the Longines Heritage L2.730.4.18.0 is 25mm, a non-standard dimension that ensures balanced proportions on a 47.50mm case diameter. The lug width represents the distance between the two straight lugs where the strap attaches.

Which strap is recommended for the Longines Heritage L2.730.4.18.0?

The Longines Heritage L2.730.4.18.0 pairs beautifully with alligator straps in brown or black for formal vintage aesthetics, vegetable-tanned leather for refined daily wear, or NATO straps in sturdy fabric to emphasise its aviator heritage. Your choice depends on primary use: formal, casual-elegant, or sport-vintage.

How do I change the strap on the Longines Heritage L2.730.4.18.0?

To change the strap on the Longines Heritage L2.730.4.18.0, remove the pins connecting the curved lugs to the case. Using a spring bar tool, gently push the pin from one side until it fully extracts. Repeat for the second pin, remove the old strap, and insert the new one by aligning it perfectly with the lug holes. Reinsert the pins with controlled pressure.

Which aftermarket straps are compatible with the Longines Heritage L2.730.4.18.0?

Any strap with a 25mm lug width is compatible with the Longines Heritage L2.730.4.18.0, provided it features standard straight pins and thicknesses compatible with the case geometry. Milano Straps offers a dedicated 25mm collection in leather, NATO, and rubber, each tested for perfect compatibility and artisanal finishing.

How long does a leather strap last on the Longines Heritage L2.730.4.18.0?

The lifespan of a leather strap depends on material and usage. A quality alligator or vegetable-tanned leather strap, with regular maintenance, lasts 3-5 years in daily use. Shell cordovan can last 7-10 years thanks to its natural durability. Milano Straps provides straps with 18-month warranty and recommends rotating straps to extend their 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