Longines · La Grande Classique
Strap for La Grande Classique Quartz 24 Stick Guilloche
Takes 13 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The La Grande Classique L4.209.4.73.6 (aka: L42094736), seen from the bench
Frequently asked questions
What is the lug width of the Longines La Grande Classique L4.209.4.73.6?
The lug width is 13mm. This technical measurement is essential for aftermarket strap compatibility. To verify, measure the internal distance between the two lugs using a calliper or metal ruler. This constructive specification is proportioned to the 24mm case diameter to maintain the aesthetic harmony of the La Grande Classique collection.
What is the best strap for the Longines L4.209.4.73.6?
The choice depends on use and personal preference. For formal elegance, we recommend alligator in brown or shell cordovan, which develop authentic patina over time. For daily wear, vegetable-tanned calf leather in cognac tones offers versatility and durability. For casual occasions, a satin-finish rubber strap in brown or grey creates material contrast without overwhelming the minimalist case. The ideal strap must respect the 13mm lug width.
How do I correctly change the strap on the Longines L4.209.4.73.6?
Locate the lugs (two small metal pins on either side of the case). Use a spring bar tool to gently push the outer pin towards the dial, releasing one side of the lug. Repeat on the other side. Insert the new 13mm strap, ensuring the pin is fully seated in the slots. This operation requires care to avoid scratching the case back or lugs.
Which aftermarket strap do you recommend as compatible with this model?
The 13mm straps available on milanostraps.it are specifically selected for models like your La Grande Classique. We recommend quality leather constructed with 13mm-width lugs, in materials such as alligator, calf, shell cordovan, and rubber. All straps are customisable in length, stitching colour, and initials. The Casati Milano atelier also creates bespoke straps with personalised consultation.
How long does a leather strap last on the Longines L4.209.4.73.6?
A quality artisanal leather strap lasts 3–5 years with daily wear. Durability varies by material: alligator and shell cordovan, when vegetable-tanned, age beautifully, developing authentic patina. Classical calf requires attention to moisture. The Casati Milano atelier guarantees its straps for 18 months and offers periodic maintenance services to extend your strap's 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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
