Longines · Les Grandes Classiques

Strap for Les Ravissantes de Longines Gold

Takes 9 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width9 mm
Case diameter18 mm
ReferenceL5.182.9.73.2 (aka: L51829732)
FamilyLes Grandes Classiques
MovementLongines caliber L963 Hours, Minutes | Date
CasePink Gold

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The Les Grandes Classiques L5.182.9.73.2 (aka: L51829732), seen from the bench

The Longines Les Grandes Classiques L5.182.9.73.2 is a classic European timepiece with an 18mm rose gold case and manual-wound L963 caliber movement. This model features a 9mm lug width, hours and minutes display with date window at 3 o'clock, sapphire crystal, closed caseback, and 30m water resistance. The refined design exemplifies Longines' philosophy of understated elegance, with polished case finish, applied indices, and blued hands in vintage style, proportioned for refined wrists.

Frequently asked questions

What is the lug width of the Longines Les Grandes Classiques L5.182.9.73.2?

The lug width is 9mm, a reduced measurement characteristic of compact wristwatches. This specification requires purpose-built straps. To measure accurately, use a digital calliper positioned perpendicularly between the two spring bar attachment points.

What is the best strap for the Longines L5.182.9.73.2?

To preserve the classical elegance of this timepiece, we recommend vegetable-tanned alligator (medium to dark brown) or veal leather in tobacco or burgundy tones. Cognac shell cordovan is a sophisticated choice for those appreciating natural patina evolution. Avoid sporty materials such as NATO straps, which would undermine the minimalist aesthetic of the watch.

How do I change the strap on the Longines Les Grandes Classiques?

You will need a precision spring bar tool and familiarity with delicate component handling. Position the watch on a stable surface, insert the tool under the spring bar exerting downward pressure, then extract gently. Repeat on the opposite side. Given the 9mm lug width, the operation demands precision to avoid scratching the rose gold case. Casati Milano atelier provides this service with professional instrumentation.

Can I use an aftermarket strap compatible with the L5.182.9.73.2?

Yes, provided the strap features a precisely 9mm lug width. Many artisanal strap makers can manufacture custom pieces to this specification. Verify that total strap length accommodates your wrist (18mm case width + strap + buckle closure distance).

How long does a leather strap last on this watch?

A quality leather strap (artisanal alligator or veal with vegetable tanning) typically endures 5-7 years of moderate daily wear, extendable to 10+ years with regular maintenance. Prolonged exposure to water, perspiration, and sunlight accelerates deterioration. Casati Milano's 18-month warranty covers manufacturing defects. Budget aftermarket straps have shorter lifespan (2-3 years).

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