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 diameter20 mm
ReferenceL5.184.9.73.2 (aka: L51849732)
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 L5.184.9.73.2 (aka: L51849732), seen from the bench

The Les Grandes Classiques represents Longines' line of elegant watches characterized by a minimalist design and basic functions. The model is equipped with the L963 caliber with hours, minutes and date indication. The case features 9mm lugs that give a contained wrist presence.

Frequently asked questions

What is the lug width of the Longines Les Grandes Classiques L5.184.9.73.2?

The lug width (also called strap width or ansa measurement) of the Longines Les Grandes Classiques L5.184.9.73.2 is 9mm. This measurement refers to the internal distance between the two spring bar attachment points on the case. It is a relatively uncommon specification in modern watchmaking, typical of vintage pieces from the 1990s and earlier, therefore compatibility must be verified with millimetre precision.

What type of strap is recommended for this vintage Longines in rose gold?

For a Longines L5.184.9.73.2 in rose gold, we recommend alligator in black or brown (maximum formal elegance), vintage-aged calf leather in warm tones (cognac, burgundy for versatility), or a NATO in heavy-weight cotton for daily practicality. The choice depends on usage context: a deployante buckle in rose gold paired with alligator represents the peak of refined aesthetics.

How do I correctly change the 9mm strap on this Longines timepiece?

Obtain a spring bar removal tool, place the watch on a soft surface, locate the small hole adjacent to each lug, and insert the tool's end horizontally to release the clip spring. Gently pull the old strap away and align the new one so that the spring bars click into position. Verify that both sides are securely seated before wearing the watch.

Are aftermarket straps compatible with the 9mm lug width of the L5.184.9.73.2 available?

Yes, but with an important caveat: the 9mm lug width is less common in contemporary strap production. On milanostraps.it you will find a curated selection of 9mm straps ready for shipment, customisable in leather, colour, and stitching. For specific requirements, the Casati Milano atelier provides bespoke manufacturing with direct consultation.

How long does a leather strap last on a Longines watch like the Les Grandes Classiques?

Durability depends on leather type and usage patterns: vegetable-tanned alligator lasts 3–5 years under light daily wear; aged calf 2–3 years with moderate abrasion; shell cordovan up to 8–10 years due to its natural density. Leather wear occurs primarily at the edges where the strap attaches to the lugs. Proper care—drying after perspiration, protection from direct sunlight—significantly extends strap lifespan.

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