Longines · La Grande Classique

Strap for La Grande Classique 33 Quartz Pink

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

Lug width18 mm
Case diameter33 mm
ReferenceL4.709.1.87.8 (aka: L47091878)
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

The La Grande Classique L4.709.1.87.8 (aka: L47091878), seen from the bench

La Grande Classique L4.709.1.87.8 is a 33 mm stainless steel watch from Longines' La Grande Classique collection, powered by the L420 quartz movement. The 18 mm lug width ensures balanced proportions on smaller wrists, with a sapphire crystal protecting the refined dial. This model exemplifies geometric simplicity and functional design without unnecessary ornamentation.

Frequently asked questions

What is the lug width of the Longines La Grande Classique L4.709.1.87.8?

The lug width of the Longines La Grande Classique L4.709.1.87.8 is 18 mm. This measurement refers to the distance between the two lugs (attachment points) on the watch case where the strap is fitted. Respecting this dimension is essential to ensure a perfect fit and balanced aesthetics on the wrist.

Which strap is most suitable for the Longines La Grande Classique L4.709.1.87.8?

For the L4.709.1.87.8, alligator leather with geometric grain is the most coherent choice, complementing the minimalist architecture of the case. Vegetable-tanned calfskin offers a softer alternative and develops a beautiful patina over time. Shell cordovan provides density and natural lustre that emerges with wear. NATO straps in technical fabric or natural rubber modernise the profile whilst maintaining elegance and practical usability.

How do you change the strap on the Longines La Grande Classique L4.709.1.87.8?

Strap replacement requires a specialised tool: a spring bar removal tool. Position the watch on a soft surface, locate the spring bar connecting the strap to the case, insert the tool into the lateral slot, and gently push until the bar disengages. Once removed, the old strap slides off easily. Repeat for the second lug. To fit the new 18 mm strap, align the strap holes with the case lugs and carefully insert the spring bars until they click into place.

Are aftermarket straps compatible with the Longines La Grande Classique L4.709.1.87.8?

Yes, any strap with an 18 mm lug width is compatible with the L4.709.1.87.8. Artisanal straps, if crafted with precision in width and material quality, preserve the aesthetic and functional integrity of the watch. On milanostraps.it you'll find a curated selection of 18 mm straps customisable in leather, alligator, shell cordovan and fabric, with the option to choose colours and details (initials, stitching thread) bespoke to your specifications.

How long does a leather strap last on the Longines La Grande Classique L4.709.1.87.8?

The lifespan of a leather strap depends on material quality, frequency of wear and climate conditions. A strap in alligator or shell cordovan with vegetable tanning, if properly cared for, lasts 3–5 years with daily use. Calfskin tends to wear more quickly (2–4 years). Prolonged exposure to humidity, heat and direct sunlight shortens lifespan. Artisanal straps from Casati Milano include an 18-month warranty and can be restored or replaced over time, transforming wear into the aesthetic evolution of patina.

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