Longines · La Grande Classique

Strap for La Grande Classique Quartz 29 Pink

Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width16 mm
Case diameter29 mm
ReferenceL4.512.1.11.8 (aka: L45121118)
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 L4.512.1.11.8 (aka: L45121118)

Selected for the 16 mm lug width

All 16 mm straps →

The La Grande Classique L4.512.1.11.8 (aka: L45121118), seen from the bench

The Longines La Grande Classique L4.512.1.11.8 is a 29 mm stainless steel dress watch launched in the 1990s, featuring the L420 quartz movement and a minimalist dial. The 16 mm lug width accommodates various strap materials from leather to rubber. Water resistance is rated at 30 meters for daily wear.

Frequently asked questions

What is the exact lug width of the Longines La Grande Classique L4.512.1.11.8?

The lug width of the L4.512.1.11.8 model is 16 millimetres. This narrow dimension characterises the timepiece and requires specific straps. To verify with precision, measure perpendicularly the space between the two lateral lugs using a millimetre ruler.

Which strap is recommended for the Longines La Grande Classique L4.512.1.11.8?

For this minimalist model, structured alligator with vegetable tanning is ideal for formal occasions, emphasising the discreet design. Calf with natural patina ages nobly as daily wear. For casual environments, Formula 1 rubber maintains refinement without stylistic excess. Choice depends on dial: beige favours dark brown alligator; off-white requires black or glossy black alligator.

How do I change the strap on the Longines La Grande Classique L4.512.1.11.8?

Obtain a spring bar removal tool. Position the watch with the strap facing upward, gently insert the tool into the lower slot of the lug, then lift the bar. Repeat on the other side. Insert the new 16mm strap, aligning the spring bar with the holes and press until it clicks. With cases of small diameter like this, patience is essential: excessive force damages both case and bar.

Can I use an aftermarket compatible strap on this Longines?

Yes, any strap with a 16mm lug width is compatible with the L4.512.1.11.8. The artisanal straps from milanostraps.it, specifically designed for this width, guarantee correct fit and impeccable finish. Always verify that the seller specifies compatibility: an unsuitable strap can damage the lug during installation.

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

An artisanal strap in alligator with vegetable tanning resists 4-5 years of daily use, developing authentic patina. Calf, softer, has similar longevity but requires regular brushing to preserve finish. Shell cordovan excels in durability, exceeding 5 years of intense wear. Longevity depends on exposure to moisture, perspiration and climatic variations. Casati Milano's 18-month warranty covers construction defects independent of wear.

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