Longines · La Grande Classique

Strap for La Grande Classique Automatic 38 Stainless Steel / Blue - Roman / Bracelet

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

Lug width20 mm
Case diameter38 mm
ReferenceL4.918.4.94.6
FamilyLa Grande Classique
MovementLongines caliber L591 Hours, Minutes
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 La Grande Classique L4.918.4.94.6

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The La Grande Classique L4.918.4.94.6, seen from the bench

La Grande Classique represents Longines' dress watch line characterized by essential design and basic functions. The model features the L591 caliber with hour and minute indication. 20mm lugs for the strap.

Frequently asked questions

What is the lug width of the Longines La Grande Classique L4.918.4.94.6?

The lug width of the L4.918.4.94.6 is 20mm. This is the distance between the two spring bars that attach the strap to the case. It is a specific dimension of this model, resulting from the proportional balance between the 38mm diameter and the case geometry.

What is the best strap for the Longines La Grande Classique L4.918.4.94.6?

It depends on your purpose. For formal settings, a black or dark brown alligator strap with a stainless steel deployant clasp is ideal. For a more personal touch, vegetable-tanned calf leather in cognac or honey tones offers patina and character. For versatile casual wear, a NATO strap in grey or blue provides sporty authenticity.

How do I change the strap on the Longines L4.918.4.94.6?

Remove the watch from your wrist. Using a blunt spring bar tool, gently press inward on one of the lateral spring bars at the case to release the lug. Your old strap will come free. Align the new strap with the holes and reinsert the spring bars until they click into place. Ensure they are firmly secured.

Can I use an aftermarket compatible strap with the Longines L4.918.4.94.6?

Yes, provided it is 20mm in width. Milanostraps offers artisan leather and fabric straps, customisable in colour, size and thread, fully compatible with your L4.918.4.94.6. Artisan quality ensures superior comfort and durability compared to factory straps.

How long does a leather strap last on a watch like the Longines La Grande Classique?

A quality leather strap (alligator, calf, shell cordovan) typically lasts 3–5 years with moderate daily use. Vegetable-tanned leather and natural materials age gracefully, developing patina and character. Casati Milano guarantees 18 months on artisan straps, but actual lifespan depends on usage and maintenance.

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