Longines · Heritage

Strap for Clous de Paris 36

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter36 mm
ReferenceL2.707.4.56.3 (aka: L27074563)
FamilyHeritage
MovementLongines caliber L619.2 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

Straps for the Heritage L2.707.4.56.3 (aka: L27074563)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Heritage L2.707.4.56.3 (aka: L27074563), seen from the bench

The Longines Heritage is equipped with the L619.2 caliber with hour, minute, second and date functions. The case features 20mm lugs for the strap. The movement offers essential time indications in a classic three-hand configuration with a date window.

Frequently asked questions

What is the lug width of the Longines Heritage L2.707.4.56.3?

The Longines Heritage L2.707.4.56.3 features a lug width of 20 mm, measured from the inner edge of one spring bar to the inner edge of the opposite spring bar. This dimension is specific to this model and does not tolerate approximation: any strap fitted to this watch must measure exactly 20 mm. Always verify by removing the original strap and measuring with a calliper.

What is the best strap material for the Longines Heritage L2.707.4.56.3?

Alligator remains the ideal choice for the Longines Heritage L2.707.4.56.3, as its geometric grain and natural flexibility enhance the elegant 36 mm proportions. Shell cordovan represents an alternative for those who value a pronounced patina over time. For daily wear, vegetable-tanned calf offers immediate softness and develops an aesthetic crease, whilst a cotton NATO or vulcanised rubber transforms the model into a robust, versatile instrument.

How do I change the strap on my Longines Heritage L2.707.4.56.3?

Remove the original strap using a spring bar tool (a forked instrument that compresses the pins). Position the tool on one lateral pin, compress gently and lift the strap. Repeat on the opposite side. To fit the new 20 mm strap, insert the pins into the slots and ensure they seat fully in the lug holes. If you lack experience, the Casati Milano team is available for strap changes in-atelier.

Can I use an aftermarket strap compatible with the Longines Heritage L2.707.4.56.3?

Yes, provided the strap measures exactly 20 mm lug width and is constructed to a standard befitting the watch's value. Milanostraps.it supplies a range of 20 mm straps crafted from premium leathers—alligator, calf, shell cordovan—with artisanal finishing. Each strap is personalised to wrist measurement, stitching thread choice and initials, ensuring aesthetic and functional harmony with your Heritage.

What is the lifespan of a leather strap on a Longines Heritage L2.707.4.56.3?

Strap durability depends on material and usage patterns. A quality alligator strap, vegetable or vegetable-synthetic tanned, retains structural integrity between 3 and 5 years of daily wear; shell cordovan may last longer due to fibre density, though it develops characteristic creasing. A vegetable-tanned calf strap resists between 2 and 4 years. To extend service life, avoid prolonged moisture exposure and store the strap away from direct sunlight. Casati Milano warrants its straps for 18 months, with periodic reconditioning 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