Longines · La Grande Classique

Strap for La Grande Classique 33 Quartz 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 diameter33 mm
ReferenceL4.709.4.17.2 (aka: L47094172)
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 L4.709.4.17.2 (aka: L47094172)

Selected for the 18 mm lug width

All 18 mm straps →

The La Grande Classique L4.709.4.17.2 (aka: L47094172), seen from the bench

La Grande Classique represents Longines' line of elegant timepieces characterized by a minimalist design. The model mounts the L420 quartz caliber with hour and minute indication. The case features 18mm lugs for the strap.

Frequently asked questions

What is the lug width of the Longines La Grande Classique L4.709.4.17.2?

The lug width of this model is 18mm. Measure the distance between the horizontal pins on the case using a ruler or calliper to verify compatibility with any strap. This measurement is precise and does not allow for variation.

What is the best strap for the Longines La Grande Classique L4.709.4.17.2?

Alligator represents the optimal choice: its natural grain dialogues elegantly with the brushed steel case surface without competing visually. Shell cordovan offers a structured alternative with a patina that improves over time. Vegetable-tanned calf provides tactile softness whilst maintaining aesthetic solidity. Avoid materials that overpower the delicate proportions of this 33mm timepiece.

How do I change the strap on my Longines La Grande Classique L4.709.4.17.2?

Using a spring bar removal tool, gently press the spring pin inward to release the lug from the case. Remove the old strap and insert the new one by aligning the pins with the case's side apertures. Press until you hear the insertion click. This procedure requires precision to avoid scratching the case.

Can I use an aftermarket strap with my L4.709.4.17.2?

Yes. Ensure it is compatible with the 18mm lug width. On milanostraps.it you will find a selection of aftermarket straps specialised in this measurement, customisable in leather, colour and finishes. The Casati Milano atelier also creates bespoke straps with dedicated aesthetic consultation.

How long does a leather strap last on the Longines La Grande Classique L4.709.4.17.2?

Durability depends on material and frequency of use. Premium alligator resists 3-5 years with daily wear, developing a patina. Shell cordovan lasts longer owing to the dense structure of the leather. Vegetable-tanned calf offers 2-4 years before requiring replacement. Storing the strap away from moisture and direct light significantly extends longevity.

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