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Longines · Les Grandes Classiques

Strap for Longines Les Grandes Classiques L6.110.7.15.6

The Prestige Gold 15 Oval Diamond takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

18mm
18 mm strapsAll Longines
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Lug width18 mm
ReferenceL6.110.7.15.6 (aka: L61107156)
FamilyLes Grandes Classiques
MovementLongines caliber L963 Hours, Minutes | Date
CaseYellow Gold

Spring bar

Swiss Standard universal spring bars

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

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What I'm asked about the Longines Les Grandes Classiques L6.110.7.15.6

What strap size does the Longines Les Grandes Classiques L6.110.7.15.6 take?

The Longines Les Grandes Classiques L6.110.7.15.6 needs 18 mm between the lugs, usually 16 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Longines Les Grandes Classiques L6.110.7.15.6 be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Longines Les Grandes Classiques L6.110.7.15.6?

Yes, in 18 mm leather. On a dress watch alligator is the natural choice: thin, elegant, what it was born for.

Which strap do you recommend for the Longines Les Grandes Classiques L6.110.7.15.6?

A thin 18 mm alligator. You'll find it ready in the 18 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

Straps for the Les Grandes Classiques L6.110.7.15.6

Selected for the 18 mm lug width

All 18 mm straps →

The Les Grandes Classiques L6.110.7.15.6, seen from the bench

The Longines Les Grandes Classiques L6.110.7.15.6 is a yellow gold timepiece with a 15mm case diameter and 18mm lug width. Powered by the manual-winding Longines L963 caliber, it features hours and minutes hands with a date window at 3 o'clock. This model represents Longines' commitment to refined proportions and Swiss craftsmanship from its storied tradition dating back to 1832.

Frequently asked questions

Can I use an aftermarket strap with my Longines L6.110.7.15.6?

Yes, provided it is compatible with the 18mm lug width. Artisanal straps online at milanostraps.it are available in this specific size, customisable in materials (alligator, calf, shell cordovan), colours, initials and stitching thread. Compatibility is guaranteed by respecting the lug width: any 18mm strap will fit correctly in the case bars without issue.

How long does a leather strap last on the Longines L6.110.7.15.6?

Leather strap durability depends on material and usage intensity. High-quality alligator with vegetable tanning can last 5-7 years of moderate daily use, developing increasingly fascinating patina. Italian calf guarantees 3-5 years before replacement. Shell cordovan, thanks to its intrinsic density, can exceed 7-8 years. All Casati Milano straps include 18-month warranty and can be partially replaced (toprail only) to significantly extend 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

The atelier's website: casatimilano.com