Longines · La Grande Classique

Strap for La Grande Classique Tonneau 22 Stainless Steel

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter22 mm
ReferenceL4.205.4.87.6 (aka: L42054876)
FamilyLa Grande Classique
MovementLongines caliber L209 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 L4.205.4.87.6 (aka: L42054876)

Selected for the 18 mm lug width

All 18 mm straps →

The La Grande Classique L4.205.4.87.6 (aka: L42054876), seen from the bench

The Longines La Grande Classique L4.205.4.87.6 is a 22.20mm stainless steel timepiece from the brand's iconic collection established since 1832. Powered by the Longines caliber L209 quartz movement with hours and minutes indicators, it features a ultra-flat case of just 4.45mm thickness with a silvery dial and integrated lugs. The 316L brushed and satin stainless steel case ensures durability and sophisticated aesthetics. Requires an 18mm lug width for compatible straps.

Frequently asked questions

What is the lug width of the Longines La Grande Classique L4.205.4.87.6?

The Longines La Grande Classique L4.205.4.87.6 features an 18mm lug width. This is the spacing between the two integrated lugs of the case. To verify accurately, measure the internal gap where the strap inserts using a digital calliper, excluding any metal protective guards. Precise measurement is essential to avoid ordering errors.

What is the best strap for the Longines La Grande Classique L4.205.4.87.6?

For this ultra-thin model, we recommend an alligator strap in black with vegetable tanning to maximise formality, or shell cordovan in burgundy for sophisticated elegance. Smooth vegetable-tanned calf leather offers balance between aesthetics and versatility. Your choice should reflect intended use: formal contexts demand premium leather, while casual wear benefits from grey NATO fabric or satin-finished FKM rubber.

How do you change the strap on the Longines La Grande Classique L4.205.4.87.6?

The integrated lugs require a spring bar tool or fine-tipped pincers for removal. Place the watch on a soft surface, locate the spring bar securing the strap, gently push downward to extract it. Repeat on the opposite end, then remove the old strap. Insert the new 18mm strap, reinsert the spring bar and ensure perfect tension. If unfamiliar with this procedure, consult a professional watchmaker.

Is an aftermarket strap compatible with the Longines La Grande Classique L4.205.4.87.6?

Yes, any strap with an 18mm lug width is compatible. Artisanal aftermarket straps offer advantages over OEM Longines options: virtually unlimited choice of leathers (alligator, calf, shell cordovan, suede), tanning methods (vegetable, natural), bespoke colours and custom finishes. Ensure the strap is constructed with precise tolerances to guarantee secure fit without movement.

How long does a leather strap last on the Longines La Grande Classique L4.205.4.87.6?

Longevity depends on usage frequency and leather quality. An alligator or shell cordovan strap with vegetable tanning lasts 5-8 years with daily wear, developing beautiful patina over time. Smooth calf offers similar durability. With occasional use (once or twice weekly), lifespan extends to 10+ years. Leather exposed to prolonged humidity, direct sunlight or sweat ages faster, reducing service life by half. Regular maintenance—cleaning and conditioning—significantly extends durability.

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