Longines · La Grande Classique

Strap for La Grandes Classique Quartz 36 PVD Rose / White Roman

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
ReferenceL4.755.1.91.7 (aka: L47551917)
FamilyLa Grande Classique
MovementLongines caliber L420 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 L4.755.1.91.7 (aka: L47551917)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The La Grande Classique L4.755.1.91.7 (aka: L47551917), seen from the bench

The Grande Classique L4.755.1.91.7 is a 36mm stainless steel quartz watch featuring the reliable Longines L420 movement. With a 20mm lug width, this classic model combines Swiss watchmaking heritage with understated elegance, featuring a transparent caseback, smooth bezel, and Arabic numerals for clear readability. The proportions are carefully balanced to work across different wrists and occasions without compromising aesthetic dignity.

Frequently asked questions

What is the lug width of the Longines La Grande Classique L4.755.1.91.7?

The lug width of the Longines La Grande Classique L4.755.1.91.7 is 20 millimetres. This specific measurement was chosen by Longines to maintain perfect proportions between the 36mm case and the strap, creating a balanced visual dialogue that neither overwhelms nor weakens the timepiece.

What is the best strap for the Longines La Grande Classique L4.755.1.91.7?

The optimal strap depends on intended usage. For formal occasions, we recommend alligator black or shell cordovan; for daily versatility, vegetable-tanned calf in brown or deep burgundy tones; for sportier contexts, cotton canvas NATO or grey rubber strap. All must feature a 20mm lug width.

How do I change the strap on my Longines La Grande Classique L4.755.1.91.7?

Strap replacement involves extracting the spring bars located at the lug ends. Equip yourself with a dedicated tool or small lever: position the tip in the spring bar groove, gently push downward to compress the internal spring, then remove the bar. Repeat from the opposite side. Insert the new 20mm strap's spring bars by reversing the procedure.

Can I use an aftermarket strap on my Longines La Grande Classique L4.755.1.91.7?

Absolutely. Provided the strap is compatible with a 20mm lug width, you can fit any quality aftermarket strap. Artisan-made bespoke straps offer superior construction quality, personalised material selection, and longevity compared to generic options.

How long does a leather strap last on a watch like the Longines La Grande Classique L4.755.1.91.7?

Lifespan depends on material, frequency of wear, and maintenance. A quality artisan alligator or shell cordovan strap typically lasts 5-7 years if worn daily, longer if used occasionally. A vegetable-tanned calf strap has similar durability. Replacement is straightforward and affordable relative to the watch's value.

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