Technical Archive

Longines
La Grande Classique L4.908.4.72.6 (aka: L49084726)— lug 20mm

Longines La Grande Classique L4.908.4.72.6 (aka: L49084726): 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

La Grande Classique Automatic 36 Silver / Bracelet

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Longines L4.908.4.72.6 (aka: L49084726)
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

L4.908.4.72.6 (aka: L49084726)

Movement

Longines caliber L591 Hours, Minutes

The Heritage

The La Grande Classique represents Longines' dress watch line characterized by essential lines and a slim profile. The model is equipped with the L591 quartz caliber with hour and minute indication. The case features 20mm lugs for the strap.

FAQ

What is the exact lug width of the Longines La Grande Classique L4.908.4.72.6?

The lug width of the Longines La Grande Classique L4.908.4.72.6 is precisely 20 millimetres. This measurement is specifically engineered to complement the 36-millimetre case diameter, ensuring perfect visual balance. To verify strap compatibility, measure the distance between the two lugs (the lateral protrusions where straps attach): it must be exactly 20 mm.

Which strap material is most suitable for the Longines La Grande Classique L4.908.4.72.6?

Given the classical and minimalist character of this timepiece, leather straps are strongly recommended: dark brown or black alligator, burgundy or bordeaux calf leather, or black shell cordovan. These materials respect the sober aesthetics of the watch and develop a compelling patina with age. For versatility, vegetable-tanned calf in natural honey tone permits transitions between formal and casual contexts. Grey technical rubber straps are equally acceptable for daily wear purposes.

How do I change the strap on my Longines La Grande Classique L4.908.4.72.6?

Strap replacement requires a spring bar tool (an instrument with bifurcated extremities). Position the watch on a soft, flat surface to avoid scratching. Gently insert the tool's tip into the two small lateral openings of the lug, press inward to compress the spring inside, then extract the spring bar from the case. Repeat on the opposite end. Verify the spring bar remains intact before reinstalling it with the new strap.

Can the Longines La Grande Classique L4.908.4.72.6 accept quality aftermarket straps?

Yes, the L4.908.4.72.6 is fully compatible with premium aftermarket straps measuring 20 mm lug width. Compatibility depends solely on the strap's internal width, not the brand. Artisanal straps crafted from alligator, calf leather, shell cordovan or other premium materials fit perfectly and frequently offer superior quality to OEM alternatives, permitting customisation in leather type, colour and finishing.

What is the lifespan of a leather strap on the Longines La Grande Classique L4.908.4.72.6?

Strap longevity depends on frequency of use, material type and construction quality. A well-made calf leather strap typically endures 3–5 years of regular daily wear before showing substantial deterioration. Alligator and shell cordovan exhibit greater durability (5–7 years) due to inherently stronger leather structure. Proper maintenance—avoiding standing water and excessive humidity—significantly extends lifespan. Even after visible wear, straps remain functional and can be professionally restored by specialised artisans.